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Double sink rough in. . .

Posted by TALDE (My Page) on
Sat, May 11, 13 at 14:53


Does anyone see any drain or venting issues with this rough in for a double sink ?? (All 1.5 inch pvc). The vertical vent tees into the shower vent in the attic and exits through the existing roof vent. I will be putting a 2x3 wall there, btw. Thanks!


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RE: Double sink rough in. . .

I believe the total length of 1.5 inch vent can be 25 feet total. I could not determine from your picture how you attached/supported the pipe.It's good practice to include pipe supports close to tees. It wouldn't hurt to put in a support at your short horizontal vent pipe, but I tend to overbuild. Make sure that the horizontal pipe is sloped 1/4 inch per foot.

See Section 905 of 2012 International Plumbing Code for venting connections. With your T into shower vent: vent connections must be at least 6 inches above the fixture/flood level being vented.

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