Guilty-Ham

Guilty-Ham t1_j9m3hzg wrote

It needs an island vent. It offsets under the window and by code you cant offset below flood level rim of the fixture. To vent without the offset would require it to rise straight up which it can't...obviously.

You don't purchase an island vent, you have to oversize the drain and loop the vent from the sink apex back into the oversize pipe, in this case, it should be a 3" drain. here is an illustration https://www.google.com/imgres?imgurl=https%3A%2F%2Fterrylove.com%2Fimages%2Fisland_vent_1b.jpg&imgrefurl=https%3A%2F%2Fterrylove.com%2Fforums%2Findex.php%3Fthreads%2Fisland-sink-venting.43049%2F&tbnid=H1dkqasDSFGZrM&vet=12ahUKEwipjuPqoar9AhURh-4BHeknA4gQMygBegUIARDLAw..i&docid=8ppTsAUDa6_OhM&w=512&h=459&q=island%20vent&client=firefox-b-1-d&ved=2ahUKEwipjuPqoar9AhURh-4BHeknA4gQMygBegUIARDLAw

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Guilty-Ham t1_j9iqn27 wrote

Hey OP, you did the biggest abortion of a remodel. The other seam of the counter is equally horrid. Plus, who installs the faucet right at the trim of a window where the pipes will freeze in a cold snap.

Also, I doubt the sink drain has proper venting, which would be an island vent system.

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