Just installed a Sure Vent underneath our kitchen island sink. I added the T and 5-6 inch of pipe between the T and the sure vent.

Now water is filling up the sink and the sure vent pipe.

What did I do wrong?

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  • Did you stuff a rag in the pipe to prevent smells or possibly dribbled some pipe cement in the drain and it spread over the water in the trap made a plastic plug I have seen that before. – Ed Beal Mar 24 at 21:38
  • Nope but thanks for the idea. – philgo20 Mar 25 at 23:43
  • Draino will dissolve a rag LOL – Ed Beal Mar 26 at 2:25
  • 3
    The sanitary Tee in your photo is installed UPSIDE DOWN. The curve should be going down to drain, not up to vent. – Alaska Man Mar 26 at 16:45
  • @alaskaman I didn't realize there was a side to install it. Do you think it's worth redoing it? Seems to work fine now but ... – philgo20 Mar 29 at 0:37

The actual issue was the drain blocked. The Surevent was properly installed and just exposed even further the fact that our drain was clogged. A full bottle Drano and a few dead dolphins later we are good to go.

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