Garage Utility Sink

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Big Mike

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I'm interested in putting a utility sink in my garage. I will try and post pictures if it makes things easier but for now I'll try and describe my situation

Regarding a drain- The 2" sewer pipe is about 6 ft off the floor. There is a cleanout plug directly above the place that I want to put the sink. First Question- Can I simply unscrew the drain plug, add a PVC Tee extension (Or cast iron), use a Laundry pump, and put a new PVC plug at the end?

Regarding venting- I assume it's necessary. I'm looking for the easiest way possible and since it's in a garage it doesn't have to be pretty. Can I just use an AAV? (not sure what they actually are, but saw it on this forum)

I'll post more questions as I go.

Thanks All!

Mike
 

hj

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The pump discharge would need a check valve before connecting to the drain. Depending on what goes into the pump, if you do not put a trap between the sink and the basin you might be able to get by without a vent, but if you do need a vent, an AAV will NOT work.
 

Big Mike

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Thanks!
When you say that it depends on what goes in the pump that I might not need a vent- If I just rinse paintbrushes and wash my hands in the sink I won't need a vent? When would I need a vent?
 

Big Mike

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Maybe I'm not asking the question right. When can I get away without using a vent in my situation?
 

Cacher_Chick

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The question might be best answered by the building/plumbing inspector who will need to sign off on the installation. I believe what hj was saying is that if you installed the drain directly to the laundry pump with no trap, then there would be no need for a vent. On the other hand, if the pump basin is a sealed unit, it would require it's own vent.
Codes aside, if there is no way for sewer gas to return to the drain, a trap and vent would not be accomplishing anything.
 
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