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I've seen arguments that 2" drains clog LESS because they are bigger vs. arguments that 2" drains clog MORE because theres less scouring/swirling action than in a 1.5". My application has a 3 foot and 5 foot slanted horizontal runs and two 90 degree (sweeping) elbows to the stack. Its vented to...

LOL

Thanks voletl, sorry for your frustration. You are right, any discussion other than your's is shameful crap, I get it. Thanks again for your kind input.

Thanks DieHard, you nailed it. voletl can't help it, his box is the code and he gets frustrated with even the discussion of anything out of that black and white box. Anyway, this forum was very helpful! Thanks

voletl, not aware of anything "to not Understand". I appreciate your post and literal pictures, thanks for taking the time, it was useful. If you read the thread you will understand that I cant implement the method in your pictures and did say I could use an AAV. No harm in asking for...

Thanks Breplum, RenewDave, Jeff Handy, Diehard, voletl. RenewDave - are AAVs failing to vent, or failing to keep water in? It seems to me that since my space restricts me to my 3 options, I can go with #1 (AAV) and meet code, but #3 which does not meet code is probably safer (a better and more...

Thanks voletl and Diehard, unfortunately I don't have room for the separate floor vent and drain pipe, that's why I was wondering if any of my three configurations met code. Perhaps I can get by with the AAV.

Which of these 3 island sink vents meets code? Drain by Manjay posted Nov 8, 2019 at 4:27 PM Which of these 3 vents meets code?

3 vent designs