Drainage, Waste & VentQuestion 158 of 360
A small under-the-sink hydromechanical grease trap rated to PDI standards commonly has a flow rating such as…
a.100 GPM
b.20 or 25 GPM with a matching grease capacity
c.5 GPM
d.500 GPM
Explanation
Point-of-use grease traps are commonly rated at low flows such as 20 or 25 GPM, matched to a corresponding grease-retention capacity in pounds. A flow-control fitting holds the flow at that rating so grease can separate. Larger loads require larger hydromechanical units or a gravity interceptor.
Law Reference: 2022 California Plumbing Code (CPC) §1014.0Practice all 360 questions free — no signup required.
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