Requesting feedback on plumbing diagram

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Old 02-20-14, 04:53 PM
D
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Requesting feedback on plumbing diagram

Below is a diagram for my bathroom remodel being done under permit, which includes replacement of CI stack. Welcome any feedback to help ensure it is code compliant and best I can make it. The bathroom is 7'4" by 7'4" on 2x8 joists.

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Old 03-02-14, 06:41 PM
Z
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Hey there, sorry no one has provided any feedback yet... I'll give you some comments:

- If you have a 3" main drain, your main vent needs to remain 3". (There are some rules that allow you to downsize it, but typically, the main drain/vent are the same)

- Instead of using a 3x3x3x2, why don't you tie the 2" drain into the 3" toilet drain with a 3x3x2 wye. It seems that it would be better than going all the way back to the stack. To be honest, I don't know if a 3x3x3x2 would be code-compliant or not... I've never used one before

- The sink can be all 1.5". No 2" required throughout the whole bathroom.
 
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