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is this vent okay

Asked Nov 19, 2011, 08:05 AM — 23 Answers
Hi, I am plumbing in a lav and a bathtub both are stubbed at 1.5" I increased both to 2" hoping to avoid clogs due to girls with long hair in our family.
My question is can my tub be wet vented by the lavs 1.5" vent? The distance will be about 4' from the tub trap to the lav's vent.
Thanks guys

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mikect05's Avatar
mikect05 Posts: 46, Reputation: 1
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#21

Nov 26, 2011, 05:49 AM
Thanks guys for the input, it is not glued yet so I can definitely modify it.

Mygirlsdad77...what is a running trap?

The lav does have a 2" ptrap.

Mark....I will try to roll that wye on it's side if I have room to do it between joists

Okay so how much does the pipe have to go down vertically after the tail piece of the trap for it not to be a running trap?

Would I just be better off putting Ptrap on the bath drain by itself?
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mikect05's Avatar
mikect05 Posts: 46, Reputation: 1
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#22

Nov 26, 2011, 11:06 AM
Does this look better?
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massplumber2008's Avatar
massplumber2008 Posts: 10,568, Reputation: 5097
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#23

Nov 26, 2011, 12:08 PM


Yeah, that will be much better in terms of the tub trap! And, actually, that is exactly what I proposed in one of my last posts when I suggested rolling the lavatory drain/vent connection above the center line of the tub drain!! Good job!

I'd say cement that up, but if you want to wait and discuss it with MGD77, I certainly understand as he may make other useful suggestions here, Mike...

Thanks Lee!

Mark
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mygirlsdad77's Avatar
mygirlsdad77 Posts: 5,547, Reputation: 1650
Plumbing Expert
  
#24

Nov 26, 2011, 02:52 PM


Hey, that last pic is perfect. Im with Mark now, glue er up that way. dont worry about the running trap, its really just trivial at this point. The way you have it now will fine. I wasnt really that worried about the back outlet waste and overflow, just the trap dropping into the wye the way it did, but you have that fixed now. Good job, looks good.
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