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TY oops


John Dirks Jr
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My guess is they went with an incorrect TY for this toilet so they could get the pipe to go over the girder. It looks like utilizing the correct Y fitting would make the pipe unable to go above the girder. The sink drain is also a T. Does anyone have any other thoughts on this?

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Steven, where are you getting that 2 feet?

UPC has the maximum length of the trap arm (flange to vent) for a WC at 6' and the IRC has it as "shall not be limited".

UPC and IRC allow a sanitary tee to be used only for horizontal to vertical connections, and not on it's back like that (vertical to horizontal). Both "tees" should be a wye or a combo.

John D, Jr...both are wrong, as you called it. Presumably, both could lead to easier clogging. Unfortunately, my "knowledge" of hydrodynamics and waterborne solids leads me to having no idea how much easier or the severity of the problem. But...wrong is wrong.

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Richard,

You're right about not believing everything you think.

I wasn't sure about the sanitary tee being ok, after checking NYC code, I agree, it is not.

NYC code calls for max 48" to vent. I was thinking 24" because somewhere in my head it got mixed up with max distance to a trap.

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