APPROVED ENG BLD2022-1092+GRINDER PUMP+9.27.2022_11.50.23_AM+3131230RAM Engineering
To: City of Edmonds, Development Services Department
121 5th Avenue North
Edmonds WA 98020
From: Rob Long, PE
RAM Engineering BLD2022-1092
19109 36th Ave W, Suite 100
Lynnwood WA 98036
Subject: Lot 3- 88th Ave W SP, BLD2022-1092
19512 88th Ave W, Edmonds WA 98020
Sewer Pump System Design
Memorandum
Date: September 27, 2022
RECEIVED
Sep 27 2022
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
This memo provides the supporting calculations for the Lot 3- 88th Ave W SP single family residence
(SFR) grinder pump system. A City of Edmonds pre -approved E-One DH151 grinder pump package
system will be utilized for the SFR. The SFR grinder pump system will pump the sewage flows from the
new house to an existing gravity side sewer system stub near 88th Ave W.
The model DH151 grinder pump station is a complete unit that includes: the grinder pump, check valve,
HDPE (high density polyethylene) tank, controls, and alarm panel. Per the manufacture, a single DH151
is a popular choice for two average single-family home and therefore will have adequate capacity for the
proposed Lot 3 single-family residence.
Attached are the supporting sizing details and specifications for the Lot 3- 88th Ave W SP E-One DH151
grinder pump package system.
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Attachments:
A. Site Plan. (1 page)
B. Design Calculations. (5 pages)
C. Manufacturer's data, drawings, and details. (20 pages)
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
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Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
B. Design Calculations.
B.1. Single -Family Residence Water Fixture Counts:
A City of Edmonds pre -approved E-One DH151 series grinder pump package system is proposed for
the Lot 3 single-family residence. In accordance with the manufacture the E-One DH151 system has
capacity for two average sized single-family homes:
General Features
The model DH151 or DR151 grinder pump station is a complete unit that
includes: the grinder pump, check valve, polyethylene tank, controls, and alarm
panel. A single DH151 or DR151 is a popular choice for up to two, average
single-family homes and can also be used for up to six average single-family
homes where codes allow and with consent of the factory.
• Rated for flows of 1500 gpd (5678 Ipd)
• 150 gallons (568 liters) of capacity
• Indoor or outdoor installation
• Standard outdoor heights range from 63 inches to 160 inches
The DH151 is the "hardwired," or "wired," model where a cable connects the
motor controls to the level controls through watertight penetrations.
B.2. Force Main
1. The E-One system will have operating discharge rate of 14.1 gpm when considering the total head
conditions of the system (see calculation below). Due to the discharge rate of 14.1 gpm (the E-One
system has a maximum discharge rate of 15.0 gpm) the force main discharge line will be a 1-1/2"
diameter force main. The standard E-One package system internal piping and connection point
consist of 1-1/2" piping. The 14.1 gpm discharge in the 1-1/2" diameter force main will have a
flushing of 2.56 ft/sec.; thus maintaining the City of Edmonds recommended minimum flushing
velocity of 2.5 ft/sec. A 2" force main would only have a flushing velocity of 1.44 ft/sec at a
discharge rate of 14.1 gpm.
2. All pipe and fittings for the grinder pump system shall be 1-1/2-inch High Mol (200 psi) polyethylene
pipe from the grinder pump to the gravity sewer stub near 881h Ave W. The polyethylene pipe shall
be joined by brass fittings with stainless steel inserts. The pipe location shall be identified by
installation of a 12-gauge tracer wire wrapped and taped every 10 feet to the force main. Minimum
cover on force mains shall be 3 feet (or as required to provide minimum clearance from water mains
and other utilities).
3. All discharge pipes should be located within private property and connect to a side sewer cleanout
at the street right-of-way per City of Edmonds Standard Detail SS-202.
4. Fittings along the force main, such as bends, will not be allowed. Pipe couplings shall be brass
compression with stainless steel inserts.
Page B-1
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
B.3. Pump Station Hydraulic Calculations:
Proposed Grinder Pump System: eOne DH071 grinder pump package system
Pump On Elev. = 349.1
Pump Off Elev. = 348.8
Discharge Elev. = 356.0
Maximum Static Head: 7.2 ft (356.0 Discharge — 348.8 Pump Off)
Pump Service line:
City of Edmonds recommended minimum pump service line = 2"
DOE recommended minimum pump service line = 1"
Proposed pump line = 1-1/2" (due to minimum flushing velocity)
Dynamic Head Calculation (Force main hydraulic losses):
Length of 1-1/2" service line = 230 ft
Operating Flow Rate = 14.1 gpm
Dynamic Head, use the following equation to determine friction loss:
C100 �'.85 i 852
f = 0.2083 C D 4.8655
where: f = friction loss per 100 ft. of pipe
C = flow coefficient 4 150 for PVC
Q = 14.1 gpm
Di = inside diameter of pipe, in. 4 1.5 in.
ll1.85 ( 1852)
f = 0.2083 (150/ \154.8655 1.84 ft. per 100 ft. of pipe
Dynamic Head = 230 ft * 1.84 ft. / 100 ft. = 4.23 ft
Minor hydraulic losses due to valves and fittings: eOne pump curve includes minor losses due to
valves and fittings in package system per manufacture.
Total Head: 11.4 ft (7.2' Static + 4.2' Dynamic)
Operating Discharge Flow Rate per System Pump Curve: 14.1 gpm
Flushing Velocity Check:
Recommended minimum flushing velocity per DOE = 2.0 ft/sec.
Recommended minimum flushing velocity per City of Edmonds = 2.5 ft/sec.
Proposed system operating velocity = 2.56 ft/sec. (14.1 gpm through a 1-1/2" service line)
Page B-2
RAM Engineering 1910936`"Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
B.4. Pump Performance Curve:
EJONE
SPO PUMP PERFORMANCE
CURVE
GRINDER PUMP, 1HP, 1725 RPM
100
230
95
220
90
210
200
85
190
80
LOW PRESSURE SYSTEM DESIGN PRESSURE
180
75
170
CONSULT FACTORY
FOR INTERMITTENT
USE ABOVE 80 PSI
70
OR 185 FEET TDH
160
65
150
60
140
130
w 55
Of
120
LnLn 50
Of m
110
D- N
CDa 45
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100 Q
z
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0 = 35
80 w
J
U 30
w
70 �`
Q
C z
z
T 25
o
60
0
w
50 =
~O 20
V
~
40 Q
15
30
10
20
5
11.4 ft
10
0
0
-5
-10
-10
-20
-
30
-15
-40
-20
-50
25
-60
0 2 4 6 8 10 12 14 16
18
DISCHARGE (0), GPM 14.1 gpm
ESD 08-0022 REV. 2, 6/08
Page B-3
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
13.5. System and Float Elevations:
WIRED
OPT I O N S :❑x DH 151 LEVELRCCONTROLS)
FIELD JOINT REQUIRED ❑ DR 151 LEVELICONTROLS)
FOR MODELS
OH151-129 / DR151-129
8
DH151-160 / DR151-160 GASKETED LID, HDPE
STRAIN RELIEF CORD
CONNECTOR
POWER/ALARM CABLE
5 CONDUCTOR W/GND \ / E/ONE EQUALIZER
Finished Ground +/-355.0
DUAL WALL, CORRUGATED
HOPE ACCESSWAY
QUICK DISCONNECT ASSY.
INTERNAL WELL VENT
2.0" DIAMETER
(304 S.S.)
S.S. CAST BALL VALVE
INLET, GROMMET
DISCHARGE
TO ACCEPT 4,50" O.D.
EL 351.1 1 1/4" FPT
_ L
PVC PIPE (STANDARD).
DUST COVER SUPPLIED
FOR SHIPMENT (NOT
SUITABLE FOR BURIAL) EE
1 1/4" DISCHARGE LINE
(304 S.S.)
43.9 in
1115 mm
ALARM
EI. 349.8
CHECK VALVE
(NORYL)
� m
C
j
38.4 in
O
975 mm
m
737i
ANTI -SIPHON VALVE
I
ON
EI. 349.1 mm
(NORYL�
L
EI.348.8 gal
OFF
43
439 L
r
21 in
534
mm
17 in
432 mm 84 9,31
318IL
1,
266 509E
El. 347.4
POLYETHYLENE TANK
1/2" NOMINAL WALL THICKNESS 0 38.8 in-
150 GALLON CAPACITY 984 mm
SEMI -POSITIVE DISPLACEMENT TYPE PUMP
DIRFCTI Y DRIVFN BY A 1 HP MOTOR �L V PC NSF CIR
CONCRETE BALLAST MAY BE REQUIRED
SEE INSTALLATION INSTRUCTIONS
FOR DETAILS
NOTE: DIMENSIONS ARE FOR REFERENCE ONL
Page B-4
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
B.6. Sump Basin Anti-floatation/Buoyancy Calculations:
Per the manufacture recommendations (see attached in section C below) the following ballast
shall be provided:
Chart 1
Station
Height (in)
Wet Well
Volume
(cu ft)
FNet
Buoyant
(lb)
Station
Weight
(lb)
Fballast
(lb)
Volume
Concrete
(cu ft)
Weight
Concrete in
Air (lb)
60 inches
17.9
841
276
2623.4
6.1
915
73 inches
17.9
829
288
3349.4
6.1
915
93 inches
1 17.9
1 811
1 306
1 4614.4
6.1
915
128inchesl
17.9
1 772
1 345
1 7012.4
6.1
915
159inchesl
17.9
1 742
1 375
1 9014.4
1 6.1
1 915
B.7. Electrical Power Requirements:
The eOne DH151 system is UL listed system, the motor operational information consists of:
• 1 hp, 1,725 rpm, high torque
• Capacitor start, thermally protected
• 120/240 v, 60 Hz, 1 phase,
• Dedicated 30 amp breaker
Page B-5
RAM Engineering 1910936`"Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
C. Manufacturer's data, drawings, and details.
/amTl �
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5 E R I E 5
DH151 & DR151
Typical Installation
Instructions
& Warranty
Information
Simplex Station
150-Gal. Capacity
Page C-1
RAM Engineering 1910936` Ave W,Suite 100 Lynnw000WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
Environment One Grinder Pump Feature Identification
1. GRINDER PUMP BASIN — High density polyethylene (HDPE).
2. ACCESSWAY COVER — HDPE
3. ELECTRICAL QUICK DISCONNECT (EQD) — Cable from pump core terminates here.
4. POWER AND ALARM CABLE — Circuits to be installed in accordance with local codes.
5. ALARM PANEL — NEMA 4X enclosure. Equipped with circuit breakers. Locate according to local
codes.
6. ALARM DEVICE — Every installation is to have an alarm device to alert the homeowner of a
potential malfunction. Visual devices should be placed in very conspicuous locations.
7. INLET — EPDM grommet (4.5" ID). For 4.5" OD DWV pipe.
8. WET WELL VENT — 2.0" tank vent, supplied by factory in units with accessways.
9. GRAVITY SERVICE LINE — 4" DWV, (4.5" OD). Supplied by others.
9a. STUB -OUT — 4" X 5' Long watertight stub -out, to be installed at time of burial unless the gravity
service line is connected during installation. Supplied by others.
10. DISCHARGE VALVE — 1-1/4" Female pipe thread.
11. DISCHARGE LINE — 1-1/4" Nominal pipe size. Supplied by others.
12. CONCRETE ANCHOR — See Ballast Calculations for specific weight for station height. Supplied by
others.
13. BEDDING MATERIAL — 6" minimum depth, round aggregate, (gravel). Supplied by others.
14. FINISHED GRADE — Grade line to be 1" to 4" below removable lid and slope away from the station
15. VENT — Indoor installation. See section 6, Venting, on page 6.
16. VALVE — Full ported ball valve. Recommended option; for use during service operations. Supplied
by others.
17. CONDUIT— 1" or 1-1/4", material and burial depth as required per national and local codes.
Conduit must enter panel from bottom and be sealed per NEC section 300.5 & 300.7. Supplied by
others.
18. UNION — 1-1/4" or compression type coupling. Supplied by others. (Do not use rubber sleeve and
hose clamp type coupling.)
19. VALVE — Ball valve, must provide a full -ported 1-1/4" round passage when open. Supplied by
others.
20. REBAR — Required to lift tank after ballast (concrete anchor) has been attached, 4 places, evenly
spaced around tank.
2
Page C-2
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
3
Page C-3
RAM Engineering 19109 36" Ave W, Suite 100 Lynnwooa wH 98036 (425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
The Environment One grinder
pump is a well -engineered,
reliable and proven product;
proper installation will assure
years of trouble -free service.
The following instructions
define the recommended
procedure for installing
the grinder pump station.
These instructions cover the
installation of units with and
without accessways.
This is a sewage handling
pump and must be vented in
accordance with local plumbing
codes. This pump is not to be
installed in locations classified
as hazardous in accordance
with National Electric Code,
ANSI / NFPA 70. All piping and
electrical systems must be in
compliance with applicable
local and state codes.
1. REMOVE PACKING
MATERIAL: The User
Instructions must be given to
the homeowner. Hardware
supplied with the unit, if any,
will be used at installation.
2. TANK INSTALLATION:
The tank is supplied with
a standard grommet for
connecting the 4" DWV (4.50"
outside dia.) incoming sewer
drain. Other inlet types and
sizes are optional (Caution:
4" DR-35 pipe has a smaller
diameter and won't create
a watertight joint with the
standard grommet). Please
confirm that you have the
correct inlet before continuing.
If a concrete ballast is attached
to the tank, lift only by the lifting
eyes (rebar) embedded in the
concrete. Do not drop, roll, or
lay tank on its side. This will
damage the unit and void the
warranty.
• If the tank has no
accessway (Fig. 1 b): (Indoor
Installation) The pump may be
installed on or in the basement
floor (see Fig. 1 b). If the tank
is to be set on the floor, it must
be a flat and level bearing
surface. If the tank is to go into
the basement floor, it must be
anchored to prevent unit from
floating due to high ground
water (see Chart 1, page 12 for
weight).
• If the tank is to go in the
floor: A hole of the correct
width and depth should be
excavated. The tank must be
placed on a 6" bed of gravel
made up of naturally rounded
aggregate, clean and free
flowing, with particle size not
less than 1/8" or more than 3/4"
in diameter. The wetwell should
be leveled and filled with water
prior to pouring the concrete to
Figure 2a
prevent the tank from shifting.
If it is necessary to pour the
concrete to a level above the
inlet, the inlet must be sleeved
with an 8" tube before pouring.
There must be a minimum
clearance of three feet directly
above the tank to allow for
removal of the pump.
• If the tank has an
accessway (Fig. 1a):
Excavate a hole to a depth,
so that the removable cover
extends above the finished
grade line. The grade should
slope away from the unit. The
diameter of the hole must be
large enough to allow for a
concrete anchor. Place the unit
on a bed of gravel, naturally
rounded aggregate, clean and
free flowing, with particles not
LEVEL CONTROL
3
IF THE PUMP TO BE USED
-5 (PP) LEVEL ALARM LAMP
MOVE SWITCH TO 'WIRELESS POSITION
OPTIONAL NDDR METER OPTIONAL
REMOTE SENT
29 D.C. MAX
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2 AMP MAX.
FUN
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Page C-4
RAM Engineering 1910936`1Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
less than 1/8" or more than
3/4" in diameter. The concrete
anchor is not optional. (See
Chart 1 on page 12 for specific
requirements for your unit.)
The unit should be leveled
and the wetwell filled with water
to the bottom of the inlet to help
prevent the unit from shifting
while the concrete is being
poured. The concrete must be
vibrated to ensure there are no
voids. If it is necessary to pour
the concrete to a higher level
then the inlet, the inlet must be
sleeved with an 8" tube before
pouring.
If your unit is a model taller
than 93" it may be shipped in
two sections, requiring field
assembly. See Field Joint
Assembly Instructions on page
Figure 2b
8 for additional information.
3. INLET PIPE
INSTALLATION: Mark the inlet
pipe 3-1/2" from the end to
be inserted. Inlet pipe should
be chamfered and lubricated
with a soap solution. Lubricate
the inlet grommet with soap
solution as well. Insert the pipe
into the grommet up to the
3-1/2" mark. Inspect to ensure
the grommet has remained
intact and in place.
4. DISCHARGE: The use
of 1-1/4" PVC pressure pipe
Schedule 40 and polyethylene
pipe SDR 11 or SIDR 7 are
recommended. If polyethylene
is chosen, use compression -
type fittings to provide a
smooth inner passage.
E/One requires that an E/One
o LEVEL CONTROL
i ffua
HAS WIRELESS (IF)ULEVEL CONTROL
MOVE sw"I TO •WIRELESS POSITION LARM LAMP
1 HORN
OPTIONAL .o"P METER OPTIONAL
SILENCE
■
RES[�PSWITCH
24 24 O.0 MAX
2 AMP MAX
RUN
LED
® 0 0�
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00
11
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240V POWER a ARM
A DEDICATEE 30A CIRCUIT BREAKER. MANUAL 5 ALARM F O aRPNG Y W
RUN fi ALARM RETVR BLUE 9LVE
240 VOLT WIRING
Uni-Lateral assembly (E/One
part number NBO184PXX
or NC0193GXX) or E/One
Redundant Check Valve
(E/One part number
PC0051GXX) be installed in
the pipe lateral outside the
home between the pump
discharge and the street main
on all installations. Never use
a ball -type valve as a check
valve. E/One recommends
the valve be installed as close
to the public right-of-way as
possible. Check local codes for
applicable requirements.
CAUTION: Redundant check
valves on station laterals
and anti-siphon/check valve
assemblies on grinder pump
cores should not be used as
system isolation valves during
line tests.
• If the tank has no
accessway: (Indoor
Installation) The discharge
connection is a 1-1/4" male
NPT. The discharge piping
must incorporate a shut-off
valve and a union with a
minimum pressure rating of
160 psi, or a suitable piping
disconnect to allow for removal
of the pump core. The valve
should be of the type that
provides a full -ported passage
(i.e. a ball or gate valve). A
standard 1-1/4" union or a
compression type coupling
should be used as a disconnect
joint.
• If the tank has an
accessway: There is a ball
valve and a quick disconnect
pre -installed in the accessway.
There is a 1-1/4" female NPT
discharge connection on the
outside of the tank 41" above
the bottom of the tank.
5. BACKFILL
REQUIREMENTS: Proper
backfill is essential to
Page C-5
RAM Engineering 1910936`1Ave W,Suite 100 Lynnwood WA 98036
(425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
the long term reliability of
any underground structure.
Several methods of backfill are
available to produce favorable
results with different native soil
conditions.
The recommended method
of backfilling is to surround
the unit to grade using Class
I or Class II backfill material
as defined in ASTM 2321.
Class 1A and Class 1 B are
recommended where frost
heave is a concern; Class
1 B is a better choice when
the native soil is sand or if a
high, fluctuating water table
is expected. Class 1, angular
crushed stone, offers an added
benefit in that it needs minimal
compaction. Class 11, naturally
rounded stone, may require
more compactive effort, or
tamping, to achieve the proper
density.
If the native soil condition
consists of clean, compactible
soil with less than 12% fines,
free of ice, rocks, roots, and
organic material, it may be
an acceptable backfill. Such
soil must be compacted in
lifts not to exceed one foot to
reach a final Proctor Density
between 85% and 90%. Non -
compactible clays and silts are
not suitable backfill for this
or any underground structure
such as inlet or discharge
lines. If you are unsure of
the consistency of the native
soil it is recommended that a
geotechnical evaluation of the
material be obtained before
specifying backfill.
Another option is the use of
a fowable fill (i.e., low slump
concrete). This is particularly
attractive when installing
grinder pump stations in
augured holes where tight
clearances make it difficult to
assure proper backfilling and
compaction with dry materials.
Flowable fills should not be
dropped with more than 4 feet
between the discharge nozzle
and the bottom of the hole
since this can cause separation
of the constituent materials.
6. VENTING: The unit must
be properly vented to assure
correct operation of the pump.
If you have an indoor unit, it
can be vented through the
2" port supplied at the top of
the wetwell or through the
incoming sewer line with a 2"
pipe (the vent must be within
4 feet of the grinder pump,
and before the first change of
direction fitting).
The outdoor units are
supplied with a vent pipe from
the wetwell to the top of the
accessway. Failure to properly
vent the tank will result in faulty
operation and will void the
warranty.
7. ELECTRICAL
CONNECTION: (Supply panel
to ElOne Alarm Panel)
Figure 3
Before proceeding, verify that
the service voltage is the same
as the motor voltage shown
on the name plate. An alarm
device is to be installed in a
conspicuous location where
it can be readily seen by the
homeowner. An alarm device is
required on every installation.
There shall be no exceptions.
Wiring of supply panel and
alarm panel shall be per
Figures 2a and 2b, alarm panel
wiring diagrams and local
codes. A dedicated 30 amp
breaker is required before all
simplex alarm panels.
8. ELECTRICAL
CONNECTION: (Pump to
Panel) (Fig. 4) The grinder
pump station is provided
with a cable for connection
between the station and the
alarm panel (supply cable).
The supply cable is shipped
inside the station with a small
portion fed through the cable
connector mounted on the
wall of the fiberglass shroud.
The supply cable, a six
FILL TO GRADE WITH CLEAN, COMPACTABLE BACKFILL, SUCH AS
PEA GRAVEL OR CRUSHED STONE. 1/8" - 3/4" IN SIZE.
CLAY OR SILTS ARE NOT ACCEPTABLE BACKFILL.
POURED
PRE -CAST IN -PLACE
CONCRETE
ANCHOR
GRAVEL
BEDDING
TYPICAL IN -GROUND
SECTION VIEW
Page C-6
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
conductor tray cable, meets
NEC requirements for direct
burial as long as a minimum of
24" burial depth is maintained.
Those portions of the cable
which have less than 24" of
cover must be contained in
suitable conduit. This includes
the vertical portion dropping
to a 24" depth at the station
and the length rising out of the
ground at the control panel.
NOTE: Wiring must be installed
per national and local codes.
Conduit must enter panel from
bottom and be sealed per NEC
section 300.5 & 300.7.
8a. Installing E/One supply
cable:
1) Open the lid of the
station. Locate the cable and
the feed-thru connector on
the wall of the shroud. If the
station has a field joint and
was delivered in two pieces,
be sure both halves of the
EQD are securely assembled
together. Loosen the nut on
the connector and pull the
supply cable out through
the connector until it hits the
crimped -on stop feature on the
cable, approximately 24" from
the EQD. "IMPORTANT. All
but 24" of the cable must be
pulled out of the station, and
the EQD and Equalizer should
be hung as high in the station
as possible to ensure that the
pump functions properly. Do
not leave the excess cable in
the station.
2) Retighten the nut. This
connection must be tight or
ground water will enter the
station.
3) Feed the wire through the
length of conduit (contractor
provided), which will protect it
until it is below the 24" burial
depth.
4) Position the conduit
vertically below the cable
connector along side of the
station reaching down into the
burial depth. Attach the small
protective shroud provided
with the station to protect the
exposed cable where it enters
the station. Four self -tapping
SHROUD
_E
FOR
Power at the station must not drop below 10% of nameplate
voltage. Maximum Recommended Length:
120 Volt 60' (min. voltage at pump — 108V)
240 Volt 150' (min. voltage at pump — 216V)
Consult factory for longer lengths
TYPICAL SUPPLY CABLE
CONFIGURATION
screws are provided.
5) Run the cable
underground, in a trench or
tunnel, to the location of the
E/One panel. Leave a 6- to 12-
inch loop of cable at each end
to allow for shifting and settling.
Connections made at the panel
are shown in Figures 2a and
2b.
9. DEBRIS REMOVAL: Prior
to start-up test procedure, the
core must be removed and the
incoming sewer line flushed to
force all miscellaneous debris
into the tank. Next, all liquid
and debris must be removed.
Once tank is clean, reinstall
the pump and proceed with the
test.
10. TEST PROCEDURE:
When the system is complete
and ready for use, the following
steps should be taken to verify
proper pump and high level
alarm operation:
a) Make sure that the
discharge shutoff valve is fully
open. This valve must not
be closed when the pump is
operating. In some installations
there may be a valve, or
valves, at the street main that
must also be open.
(Ignore all Trouble
indications, LEDs and/or
messages until the panel
is reset at the end of this
procedure.)
For model DH151:
b) Turn on the alarm breaker.
c) Fill tank with water until the
high level alarm turns on. Shut
off water.
d) Turn on pump breaker;
the pump should turn on
immediately. Verify that the
high level alarm turns off
and then the pump turns off.
Proceed to Step E.
For model DR151:
b) Fill tank with 120 gallons of
Page C-7
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
water.
c) Turn on pump and alarm
breakers; the pump and high
level alarm should turn on
immediately.
d) Verify that the high level
alarm turns off and then the
pump turns off.
e) Clear/Reset the alarm
panel:
Sentry and T260 panels:
Reset is not required.
Protect Panel: Turn pump
and alarm breakers off and
back on simultaneously.
Protect Plus Panels: Perform
a "cold start" from the Initialize
System menu. Any user setting
that were previously chosen
will not be reset.
f) If any Trouble or alarm
conditions are indicated after
the panel is reset, contact your
local service provider.
Page C-8
RAM Engineering 1910936`"Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
Field Joint Assembly Instructions
IT IS EXTREMELY IMPORTANT THAT THE JOINT IS SEALED PROPERLY BEFORE
BACKFILLING. EXCAVATING A UNIT FOR REPAIR IS VERY EXPENSIVE AND CAN BE
EASILY AVOIDED BY USING PROPER CAUTION DURING THE FOLLOWING PROCEDURE.
Parts included in Field Joint
Kit: Identify all parts before
proceeding with installation.
(16) 3/8-16 x 1-1/2 long screws
(16) 3/8-16 Elastic Stop Nuts
(32) Flat Washers
(1) Length Sealant (Sika) Tape
(1) Hole Punch
(1) Vent Pipe Extension
1) Carefully clean and dry
both accessway flanges with
solvent. IMPORTANT: Sealing
surfaces must be dry to
ensure the sealant adheres
correctly.
2) Starting at one hole of
tank flange, apply two layers
of Sika Tape around the inside
half of the flange. Align the
outside edge of the tape with
the bolt circle. Move to the
adjacent hole and apply one
layer of Sika Tape around the
outside of the flange. Align
inside of tape with the bolt
circle. Remove the backing
paper as you lay the adhesive
on the flange. Do not stretch
Sika tape during application;
it may result in a leak. The
tape should overlap at the end
by approximately 1/2 inch, as
shown in Fig. 5a. If a section
of Sika Tape is misapplied, the
bad section may be cut out
and replaced. Cut away the
poorly laid portion cleanly with
a knife and be sure to over lap
the tape at each end about 1/2
inch.
3) Using the tool provided,
punch a hole through the tape
at each of the 16 existing bolt
holes in the flange. Be careful
to keep the exposed sealant
clean and dry.
4) Insert three of the sixteen
3/8-16 x 1-1/2" long bolts, with
a flat washer, into the flange
attached to the upper part of
the accessway. These will act
as guides while aligning the
bolt pattern of the two flanges.
5) Support the upper
accessway section a few
inches over the tank with the
green stripes on each lined up.
Once aligned, lower the upper
section onto the mating flange
using the three bolts to guide it
to the proper position. See Fig.
5b.
6) Insert the remaining 13
bolts with flat washers into the
flanges. Place a flat washer
and elastic stop nut on the end
of each bolt, turning the nut on
just enough to hold the washer
in place.
7) Tighten the bolts until the
sealant begins to squeeze out
from between the flanges. To
ensure a consistent, sturdy
seal, tighten them in the
following sequence: 1, 9; 5,
13; 3, 11; 7, 15; 2, 10; 4, 12;
6, 14; 8, 16. Always be sure
Figure 5a
to tighten one bolt and then
the bolt at the position 180'
from it; see figure 1 for position
numbers.
8) Using the same sequence
as in Step 7, tighten each bolt
to 60 in-lbs. Visually inspect
the joint, each bolt and each
nut should have a flat washer
between it and the flange, and
a uniform amount of sealant
should be protruding from
the seam along the entire
perimeter.
In the event that there
are any voids in the
sealant, the joint may leak.
Take corrective actions if
necessary and be sure that
the joint is leak free before
continuing.
9) Install the vent pipe
extension piece, which was
shipped inside the upper
piece of the accessway. Push
the extension pipe into the
bell mouth fitting on the pipe
installed in the wet well tank.
Be sure the pipe is seated
correctly. Slide the top end
of the extension pipe into the
receptacle on the bottom of the
lid.
Figure 5b
N, PE
1E EXTENSION
5/8 S NLE55
SIKA CAPE
RAM Engineering
Page C-9
19109 36`h Ave W, Suite 100 Lynnwood WA 98036
(425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
Lifting Instructions
FAILURE TO FOLLOW THESE INSTRUCTIONS COMPLETELY WILL VOID WARRANTY.
1. Transporting unit to
installation site: Always lift a
unit from the bottom for the
purpose of transportation.
The station should be
received attached to a pallet
for this purpose. Never roll a
station or move it on its side.
10
2. No Ballast (to be poured in
place): If the concrete anchor is
to be poured while the station
is in place lift the unit using 2
nylon straps wrapped around
the accessway making a sling,
as shown below. Keep station
oriented vertically to avoid
- image. Only lift from the
sway to put ui
moving any c
3. Precast Ballast: Never
lift a station that has a ballast
attached by any means except
the rebar. The weight of the
concrete will damage the
station if you attempt to lift it
from any part of the station.
Page C-10
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
E/One Grinder Pump Station Ballast Calculations
Any buried vessel that is submerged, or partially submerged, in water will be acted on by an
upward buoyant force that attempts to return the vessel to a non -submerged state. The magnitude
of this buoyant force is equal to the volume of the vessel that is submerged multiplied by the density
of water. On most in -ground installations a ballast, or concrete anchor, of proper volume and weight
is required to resist the buoyant force. The amount of ballast required for a given set of installation
site conditions may be calculated as follows.
Installation Site Assumptions
1. Low water table — under worst case ground water or flood conditions only the wet well portions of
the E/One grinder pump stations will be submerged.
2. Backfill materials are per these installation instructions.
3. The consulting engineer should perform a soil test to determine if the assumptions that have
been made are valid for the specific installation site. If the site conditions differ from these
assumptions, then the consulting engineer must revise the calculations as shown in this
document.
Physical Constants
1. Density of Water = 62.4 Ib/cu ft
2. Density of Concrete = 150 Ib/cu ft (in air)
3. Density of Concrete = 87.6 Ib/cu ft (in water)
4. Density of Dry Compacted Backfill = 110 Ib/cu ft
5. Density of Saturated Backfill = 70 Ib/cu ft
Procedure
A. Determine The Buoyant Force Exerted On The Station
1. Determine the buoyant force that acts on the grinder pump station when the wet well is
submerged in water.
2. Subtract the weight of the station from the buoyant force due to the submerged wet well to
determine the net buoyant force acting on the station.
B. Determine The Ballast Force Exerted On The Station
1. Determine the ballast force applied to the station from the concrete, saturated soil and dry soil.
C. Subtract The Ballast Force From the Buoyant Force.
1. Note — if the installation site conditions are different from those listed above, the consulting
engineer should recalculate the concrete ballast.
Ballast Calculations
The following calculations are to outline the areas used to determine the volumes of the different
materials for the ballast. All sections referred to in the calculations are marked on the accompanying
drawing.
11
Page C-II
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
E/One Grinder Pump Station Ballast Calculations
Sample Calculation
Volume of Station Wet Well = 17.9 cu ft
Station Weight = 306 lb
Station Height = 91.1°
A. Buoyant Force
1. The buoyant force acting on the submerged DH151-93 is equal to the weight of the displaced
water for the section of the tank that is submerged (wet well).
Fbuoyant = (density of water)(volume of DH151-93 wet well)
_ (62.4 lb/cu. ft)(17.9 cu. ft)
= 1117 lb
2. The net buoyant force acting on the station (Fnet-buoyant) is equal to the buoyant force (Fbuoyan) minus
the weight of the grinder pump station.
Fnet-buoyant = 1117 lb — 306 lb
= 811 ]b
B. Ballast Force
1. Determine the volume of concrete (if applicable) & soil (saturated and dry)
Section I: Used To Determine The Volume Of Concrete
Area = (Height)(Width) + (Triangular Area)
= (20")(3.1 ") + (1/2)(7")(5 5")
= 81.3in2
Volume= (Area)(Average Perimeter of the cylinder)
= (81.3in2)(27c)(20.95")
= (10695.2 in )(1/1728 ft3/in3)
= 6.1 ft3
Section II: Used To Determine The Volume Of Saturated Soil
12
Area = (Height)(Width) + (Trapezoidal Area)
= (14")(3.1") + (1/2)(6.53" + 12.03")(7")
= 108.4in2
Volume = (Area)(Average Perimeter of the cylinder)
_ (108.4in2)(27c)(17.45')
_ (11880.8in3 )(1/1728 ft3/in3)
= 6.9 ft'
Page C-12
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
E/One Grinder Pump Station Ballast Calculations
Sample Calculation
Section III: Used To Determine The Volume Of Dry Soil
Area=(Width)(He ight)
= (9.3")(54.1 ")
= 503.1 in'
Volume = (Area)(Average Perimeter of the cylinder)
_ (503.lin2)(27t)(17.9")
_ (56583.2 in )(1/1728 ft3/in3)
= 32.7 ft3
2. Determine the combined ballast
Ballast (total) = Ballast (concrete) + Ballast (saturated soil) + Ballast (dry soil)
= (Vooncrete)(density concrete in water) + (Vso,,)(density wet soil) + (Vso,,)(density dry soil)
= (6.1 cu ft)(87.6 Ib/ft3) + (6.9 cu ft)(70 Ib/ft3) + (32.7 cu ft)(110 Ib/ft3)
= 4614.4 lb
C. Subtract the buoyant force from the ballast force to determine the final condition
Final Condition = Ballast Force - Buoyant Force
= 4614.4 lb — 811 lb
= 3803.4 lb
The approach outlined above may be used to calculate the ballast requirements listed below.
Chart 1
Station
Height (in)
Wet Well
Volume
(Cu ft)
FNet
Buoyant
(lb)
Station
Weight
(lb)
Fballast
(lb)
Volume
Concrete
(cu ft)
Weight
Concrete in
Air (lb)
60 inches
17.9
841
276
2623.4
6.1
915
73 inches
17.9
829
288
3349.4
6.1
915
93 inches
17.9
811
306
4614.4
6.1
915
128 inches
17.9
772
345
7012.4
6.1
915
159 inches
17.9
742
375
9014.4
6.1
915
13
Page C-13
RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
SOIL CONTRIBUTION
TO BALLAST
ANGLE OF ANGLE OF
REPOSE REPOSE
026.4
SECTION III
54.1
91.1
SECTION II
14.0\\��\� BALLAST
34.0 //�\ /�\�/\�/ CON RING AINMENT
20.0 �A\i�i\\�A\\(: i\\\ SECTION I
i\\ CONCRETE ANCHOR
(915 LBS./6.1 CU FT)
\%\\\�\\\� �\\ -: - - `• • i\\\\�\ice\\�
UNDISTURBED 038.8
EARTH
045.0 V� NSF CIPNO
AD CH 07,119/07 1/20
DR BY CHK'D DATE ISSUE SCALE
SECTION III - DRY SOIL (ACCESS WAY)
SECTION U - SATURATED SOIL (WET WELL)
SEWER SYSTEMS
SECTION I - CONCRETE ANCHOR BALLAST INFORMATION
ROUND AGGREGATE (GRAVEL)
14
Page C-14
RAM --ngineering 19109 3611 Ave W, Suite lUU LynnwooaWA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
Adjusting the Height of the Grinder Pump Station
TO INCREASE STATION HEIGHT 6 INCHES
1. Increasing station height can be done without cutting the station. Use the E/One Extender cover shroud
kit (ND0082G01) and follow the instructions that are included with the kit.
TO INCREASE STATION HEIGHT MORE THAN 6 INCHES or TO REDUCE THE STATION HEIGHT:
REMOVE EXISTING COVER ASSEMBLY (Fig. 6)
If your existing station has a welded -on cover shroud you will need the
appropriate replacement cover kit (see Table 2).
1. Turn off all power to the grinder pump station.
2. Remove the tank lid and the electrical shroud. a,°°°,� IT Eoo,
3. Unplug the electrical quick disconnect (EQD) and remove the EQD
from the supply cable. Note: DO NOT CUT CABLE. Loosen liquid tight
cable connector and pull the supply cable out through the connector on
the side of tank. Figure 6
4. Tape the pump breather cable to the vent pipe in the tank.
5. Remove the soil around the tank, exposing three of
the tank corrugations below grade. Use caution not to EXTENDS 4B3,+-
ABOVE TANK CUT ACCESSWAY IN
damage burled cable. WITH UINSHEDGATION VGRADE LEVEL
6. Remove existing cover shroud. ____,_��
6a. Welded -on shroud (standard) - Using a hand saw, GRADE GRADE
cut the tank in the valley between the two corrugations at
grade, discard existing welded -on shroud and attached
corrugations (shroud is not to be reused). Caution:
Be careful not to cut either the vent pipe or the pump
breather cable.
6b. Clamped -on shroud - Remove band clamp and
cover shroud.
REDUCING STATION HEIGHT (Fig. 7)
7. Using a hand saw, cut the tank in the valley
between the two corrugations at grade.
8. Cut vent pipe 4 1/4' above the cut made on the
tank. Proceed to step 16.
INCREASING STATION HEIGHT (Fig. 8 and Fig. 9)
9. Remove the soil around the tank exposing it
18" deeper than the extension being installed. For
example, if you have a 2' extension (not including the
coupler) you must dig down 3'6" minimum from
grade; if you have a 4' extension (not including the
coupler) you must dig down 5'6" minimum from
grade. Use caution not to damage buried cable.
10. Measure from grade down 2' (for a 2'
extension) or 4' (for a 4' extension) and mark
accessway. Using a hand saw, cut the tank in the
valley between the two corrugations that are closest
to your mark. Note: Make sure the welded -on
shroud of the extension will be at grade level. Be
sure you are not cutting into the wet well and you
must have two corrugations below your cut, if there Z `
are less than two corrugations, this extension kit can
not be used.
Caution: Be careful not to cut either the vent pipe
or the pump breather cable.
COUPLER �
COUPLER
Figure 7
Figure 8
Figure 9
I
ACCESSWAY
EXTENSION
HEIGHT
2 FORT OR 4 FOOT
INSTALL COUPLER 0-RING
IN BETWEEN THE TOP TWO
CURROATIONS WITH THE
LINE ON TOP
15
Page C-15
RAM Engineering 1910936`1Ave W,Suite 100 Lynnwood WA 98036 (425) 678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
11. Attach the vent pipe extension with the 2" vent coupling, bringing the vent well above grade.
12. Clean all dirt and debris from top four corrugations on tank. Install the 24" coupler 0-ring on the tank
between the top two corrugations with the white or yellow line facing out and on top.
13. Lube extension coupler and coupler 0-ring with pipe lube or dish soap.
14. Manually press coupling evenly over lubricated O-ring- If additional force is needed, place a plywood
cover over the accessway and apply gentle mechanical pressure to the coupler. Note: Care must be used
when pushing down on the coupler. Excessive force or impact may result in damage and leakage.
15. Frequent visual inspections during installation must be performed to determine when the tank has fully
engage the coupler.
ELECTRICAL
SHROUD+
INSTALL REPLACEMENT COVER ASSEMBLY (Fig. 10) ORIGINAL TANK LID
16. Clean top corrugation on accessway extension and
mating surface of replacement shroud with acetone. WE WEL VENT GROMMET.
s5 BAND CLAMP- �RSTALLFB FROM BOTTOM
11. Liberally apply the silicone sealer provided to the
under side of the replacement shroud where it will come in
contact with the accessway extension.
18. Lube wet well vent grommet and vent pipe extension SHROUD- NT-�
with pipe lube, non -grit hand cleaner or dish soap and
slide vent pipe through grommet until tank shroud seats to 50TIT EXTNEXTENSION.3�
ABOVE TANK
accessway.
19. Place SS band clamp around top corrugation and the RA E
replacement shroud. Tap with a mallet around clamp to help
seat the clamp. Torque stud assembly on band clamp to a ACCESSWAY'
E%TENSION+
maximum 125 inlb.
20. Reinstall the supply cable, EQD"", tank lid and
electrical shroud and tighten cable connector. (""See "EQD
wiring order," Table 1)
21. Follow start-up procedures to ensure proper pump operation (you will
find the start-up instructions in our service manual or the station installation
instruction guide).
Table 2
Figure 11
16
DESCRIPTION
PART NO.
mp ex station
Simplex, flood plain config
NC0022G16
Duplex station
Duplex, flood plain config
NC0022G18
2.5- RADIUS NOTE: IF EXISTING
CUT OUT OVER
DISCHARGE ACCESSWAY HAS ONLY 2
CORRUGATIONS (Fig- 11)
- If the coupler will not
engage completely because the
discharge piping is in the way,
and it doesn't have a cut out,
you will need to cut a slot in the
coupler.
- Using a hand, reciprocating
or hole saw, cut an arch in the
coupler-, the cut-out is not to
exceed 5.50" tall or 5.00" wide.
ACCESSWAY VENT,
LIQUID TIGHT
CABLE CONNECTOR,
SURFACES TO BE CLEANED
AND 5LALED WITH SILICONE
BEFORE ASSEMBLY
GRADE
Figure 10
**EQD wiring order
PIN #
COLOR
1
Brown
e
ac
4
GrnNellow
e ow
ue
Table 1
N0002B...
G01 - 2' SLIP-ON
G02 - i' SLIP-ON
G03 = 2 FLANGE (FOR FIELD JOINT NOT SHOWN)
G04 = 9FLANGE (FOR FIELD JOINT -NOT SHOWN)
G05 2' 5LP-ON FOR AN EXISTING ACCESSWAY WITH 2-CORR,
GOG 4 SLIP-ON FOR AN EXI571NG ACCESSWAY WITH 2 CORR,
Figure 12
Page C-16
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
17
Page C-17
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
A Precision Castparts Company
Environment One Corporation
2773 Balltown Road
Niskayuna, New York 12309-1090
Voice: (01) 518.346.6161
Fax: 518.346.6188
www.eone.com
In
NA0061 P01 Rev D
10118
Page C-18
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
User Instructions for the Environment One Grinder Pump
General Information
Your home is served by a low pressure sewer system; the key element is an Environment One grinder pump.
The tank collects all solid materials and wastewater from the house. The solid materials are then ground to a
small size suitable for pumping as a slurry with the wastewater. The grinder pump generates sufficient pressure
to pump this slurry from your home to the wastewater treatment receiving line and/or disposal plant.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) this
device may not cause harmful interference; and 2) this device must accept any interference received, including
interference that may cause undesired operation. Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate this equipment.
Care and Use of your Grinder Pump
The Environment One grinder pump is capable of accepting and pumping a wide range of materials, and an
extensive grind test is required in order to obtain NSF approval. However, regulatory agencies advise that the
following items should not be introduced into any sewer, either directly or through a kitchen waste disposal unit:
Glass Seafood shells Diapers, socks, rags or cloth Syringes
Cotton swabs Personal/cleaning wipes & sponges Disposable toothbrushes Latex/vinyl items
Metal Plastic objects (toys, utensils, etc.) Kitty litter Dental floss
Aquarium gravel Sanitary napkins or tampons Cigarette butts
Caution: Kitchen garbage disposals do not keep grease/oil out of the plumbing system
In addition, you must never introduce into any sewer:
Explosives Strong chemicals Lubricating oil and/or grease
Flammable material Gasoline
Items introduced into the sewer system from your home can potentially impact the water environment. Proper
disposal of household wastes such as window cleaners, unused/expired pharmaceuticals, paint thinners, fats,
fruit labels, etc. is important. For more information, visit http:/Iwww.wef.org.
Periods of Disuse
If your home or building is left unoccupied for longer than a couple of weeks, perform the following procedure:
Purge the System. Run clean water into the unit until the pump activates. Immediately turn off the water and
allow the grinder pump to run until it shuts off automatically.
Duplex Units. Special attention must be taken to ensure that both pumps turn on when clean water is added to
the tank.
Caution: Do not disconnect power to the unit
Power Failure
Your grinder pump cannot dispose of wastewater without electrical power. If electrical power service is
interrupted, keep water usage to a minimum.
Pump Failure Alarm
Your Environment One grinder pump has been manufactured to produce an alarm signal (120 volt) in the
event of a high water level in the basin. The installer must see that the alarm signal provided is connected
to an audible and/or visual alarm in such a manner as to
provide adequate warning to the user that service is required.
During the interim prior to the arrival of an authorized service
technician, water usage must be limited to the reserve
capacity of the tank.
For service, please call your local distributor:
19
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RAM Engineering 1910936`hAve W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com
Lot 3- 88th Ave W SP, BLD2022-1092
Sewer Pump System Design Memo
Model Number:
Serial Number:
Installation Date:
Limited Warranty
For E/One Extreme D-Series,
W-Series & Upgrade
Environment One Corporation offers
a limited warranty that guarantees
its product to be free from defects in
material and factory workmanship
for a period of two years from
the date of installation, or 27
months from the date of shipment,
whichever occurs first, provided
the product is properly installed,
serviced and operated under
normal conditions and according to
manufacturer's instructions. Repair
or parts replacement required as a
result of such defect will be made
free of charge during this period
upon return of the defective parts or
equipment to the manufacturer or its
nearest authorized service center.
M
SEWER SYSTEMS
2773 Balltown Rd • Niskayuna NY USA 12309
(01) 518.346.6161 • www.eone.com
Page C-20
RAM Engineering 1910936" Ave W,Suite 100 Lynnwood WA 98036 (425)678-6960 RAMengineeringinc.com