Ask an expert

Get free help from our community of tradespeople

Kitchen drain not draining

Posted by Steve Warfield, on
I have an island sink that's vented with an AAV. This sink has drained fine for 30 yrs but lately it has been real slow. We cleared the trap and bagged the 1 1/2" line. Everything seem to flow fine. reassembled the drain and it's still slow. We pulled the AAV and found that it drained just fine so we replaced the AAV. With the new AAV in place, it still doesn't drain! We remove the new AAV, the drain works fine. We flushed the pipes again through the vent line but still the same result. AAV on, no drain, AAV off, it drains fine. What could be causing this?

What would you like to do now?

Find more questions Create my Job

Homeowner stories

Homeowner stories - Nick

Nick shares his story of finding local tradespeople in his new area.


Get our app for homeowners

  • Send messages and get notifications from tradespeople
  • Add photos to get more accurate quotes
  • View tradespeople’s profiles