GT sizing sheet 04-28-2010.pdfFacility Name: 1
Address: V 3
Grease Trap Sizing Worksheet
uite No.:
• A Grease Trap plumbing permit is required ($165.00 fee). Contact the Pretreatment
Technician (425-672-5755) if you have any questions and also to get signature approval on
this form.
• Dishwashers are not allowed to be connected to a Grease Trap.
• Food disposers are not allowed in a facility served by a Grease Trap and must be disabled or
removed. Solids must be screened out and placed in the solid waste container.
P
=Fixture Capacity in Cubic
Inches
LxWxDxnn_ of sinks)
Fixture Capacity
in Gallons
Cu. In. 231
Drainage Load
(75% of Total
Capaci
#1
X X X c.ij=
.
–., 231 al.
x .75 = g4al.
#2
X X X c.i.
231 = gal.
x.75 = gal.
#3
X X X = c.i.
= 231 = al.
x .75 = gal.
#4
1 X X X c.i.
231 = gal.
x .75 = gal.
Grease Trap #1 – Total drainage flows from maximum of 4 fixtures
#1
X X X c.i.
_231 = al.
x.75 gal.
#21
!#3
X X X c.i.
I = f
231 al.
a .
x.75 =
x 75
X X X c.i.
I
231 al.
al .
_.gal.
x.75 = cynl
x 75
#4
X X X c.i
231
23 al.
gal.
x.75 al.
Grease Trap #2 – Total drainage flows from maximum of 4 fixtures
MINIMUM SIZE OF GREASE TRAP(S) REQUIRED
2
2
2
2
Number of Fixtures Connected to a Grease Trap 1 2 3 4
Grease Trap Size in gpm) E7-20 25-4 3-5
Upsize for factors such as high volume dishwashing, high oil/grease content on menu, etc.
---------------------------------------- (For City use only below this line)
_______________________________________________
Remarks: o r\4-tt4l, 0
GL �'Pvj toll>
Size Approved: 50 gypm Approved by:--,," Date:
/Pretreatment Technician