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stealthybutthole t1_j9kl9lb wrote

Reply to comment by Guilty-Ham in Oak veneer countertop discoloured where sanded by kimchifarts123

why would an island vent be proper here? it's on an exterior wall and it's an old house, it probably has an actual vent.

also based on the fixture i'm guessing that's been there. not exactly something you can go down to home depot and purchase in 2023.

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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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stealthybutthole t1_j9m5hcc wrote

I know what an island vent is. I’m saying he didn’t install the faucet. It’s not a reno, he just redid the countertops.

As far as the vent goes, we have no idea what the plumbing actually looks like. So speculating is pointless.

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