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Old 07-12-2014, 07:28 AM   #1
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Grease trap installation

I bought a grease trap, but there were no instructions. I just have two questions. 1) Which in the inlet and which is the outlet. I assume the top opening is the inlet, but I am not sure. 2) Which way does the basket go in, does the open side point towards the top opening, or the bottom.

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Old 07-12-2014, 10:01 AM   #2
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Grease trap installation

Inlet is the high pipe, outlet low. Open side of basket toward inlet.

That is a small unit, it should probably can only serve a single sink. Grease traps are rated by the gallon flow rate.


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Old 07-12-2014, 01:56 PM   #3
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Grease trap installation

I gather they allow none plumbers to do commercial plumbing in your area? That is strictly forbidden in Ohio.

A state licensed plumber would need to pull a permit. A plan would need to be submitted with sizing information and venting requirements. Also the Grease trapped once sized for your sinks would need to be PDI approved if even allowed. Since food joints apparently have a problem with cleaning them weekly and disposing of the grease properly quite a few sewer providers are not allowing interior grease interceptors. They seem to prefer the outside ones that have pumping records and a test pit to make sure you are cleaning it.

You may ask why I will have to tell you a little story about a Chinese food restaurant that had interior grease traps that were never maintained. They managed blocking the cities sewers with rice and huge chunks of white grease. In the end it cost the sewer department about 35 grand to clean. They traced it all back with cameras and sent the food joint the bill. Then required he install a 1500 gallon outside interceptor.

Goggle grease in main sewers for some great pictures.

Last edited by Ghostmaker; 07-12-2014 at 02:20 PM.
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Old 07-12-2014, 02:01 PM   #4
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Grease trap installation

Do you have a flow restrictor? How about venting?
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
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