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
Log In
How to Show Images
Newest Subjects
Author: woodsf (MO)

I want to vent my new upstairs bathroom and laundry into the 3" main through the attic.

There will be a washing machine, shower and separate bathtub. Can I use a 1 1/2" vent for each and connect them together in the attic and then to the main 3" stack

Post Reply

 Re: Venting
Author: packy (MA)

if you are adding a bathroom upstairs you may comprimise the venting for the downstairs plumbing. this would possibly require bring all or some of the downstairs vents up above the new bathroom .
as for your question.. if you are close enough to the 3 inch stack and you configure the new bath plumbing properly, it could all be stack vented...

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:

Copyright© 2017 Plbg.com. All Rights Reserved.