Plumbing – Just installed Sure Vent is not working and sink is clogged. What did I do wrong

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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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Best Answer

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.