Garage utility sink installation (repost)
That's not right for a sink drain----no vent----
If an AAV is allowed in your area--(air admittance valve)--use one to vent that----
T--top of pipe---trap adapter to the sink( P -trap at the sink drain)----length of pipe higher than the sink top--then the AAV
Hanh the sink so we can see exactly what you need.
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