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

Over 698,000 strictly plumbing related posts

Plumbing education, information, advice, help and suggestions are provided by some of the most experienced plumbers who wish to "give back" to society. Since 1996 we have been the best online (strictly) PLUMBING advice site. If you have questions about plumbing, toilets, sinks, faucets, drains, sewers, water filters, venting, water heating, showers, pumps, and other strictly PLUMBING related issues then you've come to the right place. Please refrain from asking or discussing legal questions, or pricing, or where to purchase products, or any business issues, or for contractor referrals, or any other questions or issues not specifically related to plumbing. Keep all posts positive and absolutely no advertising. Our site is completely free, without ads or pop-ups and we don't tract you. We absolutely do not sell your personal information. We are made possible by:  

Post New
Log In
How to Show Images
Newest Subjects
 Pipes under bathroom sink
Author: notaplumberLOL (OK)

I have an older home with copper pipes. In my front bathroom there are 3 extra pipes under the sink that I was told goes to my back bathroom. How can I figure out which one of those pipes is connected to my back bathroom shower? Thank you for your help!

Post Reply

 Re: Pipes under bathroom sink
Author: george 7941 (Canada)

Easy. Run the shower and see which pipe changes temperature.

Post Reply

 Re: Pipes under bathroom sink
Author: notaplumberLOL (OK)

I did try that (and sorry I said 3 there are only 2) and they both get hot.

Post Reply

 Re: Pipes under bathroom sink
Author: packy (MA)

what happens when you run water in the other bathroom sink or flush the toilet?

the only thing i can think of is to install a couple of shut offs and see what happens when you shut the water?

if you're at all handy, its easy to cut short pieces out of the pipes and install sharkbite ball valves.

Post Reply

 Re: Pipes under bathroom sink
Author: ArthurPeabody (NM)

Run the cold and see which gets cold.

Turn it on as high as it will go and feel the pipe. You may be able to feel the water flowing.

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© 2024 Plbg.com. All Rights Reserved.