Welcome to Plbg.com
Thank you to all the plumbing professionals who offer their advice and expertise

Over 605,000 posts related to plumbing

Welcome to Plbg.com (aka: PlumbingForum.com) we are the most popular plumbing information sharing, advice, DIY and educational forum on the Web. Ask any toilet, sink, faucet, pump, water quality, and plumbing related questions. Please refrain from asking where to purchase a product, business, pricing, or legal questions, for contractor referrals, or any questions not related to plumbing. Keep all posts positive and no advertising. This site is free and made possible by:  

Post New
Search
Log In
How to Show Images
Newest Subjects
 Shower Upstream of Wet Vent?
Author: BMWT (TX)

I'm working on the plumbing for the master bathroom in a new house (slab on grade) and I have a question about wet venting. Can a fixture be connected upstream of the wet vent connection and be vented by the downstream wet vent? Can the shower drain (2") be connected to the horizontal drain branch (3") upstream of the lavatory drain that will serve as the wet vent for the line?

Post Reply

 Re: Shower Upstream of Wet Vent?
Author: North Carolina Plumber (NC)

Yes, as long as it is within 6' (codes vary) of the vent. Basically you're draining a shower into the back of a wye, and the branch is picking up the sink and wet vent ?

Post Reply

 Re: Shower Upstream of Wet Vent?
Author: BMWT (TX)

I would like to connect it like this. Will this setup work?





Edited 1 times.

Post Reply

 Re: Shower Upstream of Wet Vent?
Author: packy (MA)

the toilet/lav on the right is fine. keep the lav drain and vent full size 2 inch..
can the set-up on the left have the lav tied in over where it say 7 foot 8 inch? if you can then the seperate toilet vent can be eliminated as the toilet will be wet vented thru the lav.
an easy inspector may let the tub and 2 showers go with only a single vent.
if there is any way you can get the tub drain over the top of the long pipe and tie it into the lav drain that would solve the problem.

Post Reply

 Re: Shower Upstream of Wet Vent?
Author: hj (AZ)

Probably too far away from the lavatory to work that way.

Post Reply





Please note:
  • Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
  • Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
  • Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
  • Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.

Search for plumbing parts on our sponsor's site:




Special thanks to our sponsor:
PlumbingSupply.com


Copyright© 2017 Plbg.com. All Rights Reserved.