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

Over 600,000 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
 Noisy pipes when toilet refills (after installing new toilet)
Author: AnaZpoconos (PA)

We have two bathrooms (upstairs and downstairs) and replaced toilets in both bathrooms a few months ago. After we had the new toilets installed, there has been a loud noise coming from the pipes (foghorn or vibrating sound) after the toilet is flushed and while the toilet is filling. This didn't happen with the old toilets. Now, after a couple of months, the noise after flushing the upstairs toilet stopped but it is still happening after flushing our downstairs toilet.
I adjusted the water supply valve for the downstairs toilet and it seemed to stop or dampen the noise at times, but it didn't solve the problem completely. Also, if I open the faucet next to the downstairs toilet while the toilet is filling, then the noise goes away, but comes back as soon as the faucet is turned off if the toilet is still filling.
We asked our plumber what could be causing this noise and he couldn't give us an answer. If you have any suggestions for fixing this, I would greatly appreciate them. Thanks in advance.

Post Reply

 Re: Noisy pipes when toilet refills (after installing new toilet)
Author: packy (MA)

take your pick...
1) loose washer in shut off below toilet.
2) split washer in shut off below toilet.
3) debris in shut off below toilet.
4) loose washer in toilet fill valve,
5) cut washer in toilet fill valve.
6) debris in toilet fill valve.
i would start with 6 then 3 then 1

Post Reply

 Re: Noisy pipes when toilet refills (after installing new toilet)
Author: Paul48 (CT)

Try opening the stop valves all the way.

Post Reply

 Re: Noisy pipes when toilet refills (after installing new toilet)
Author: bernabeu (SC)

As in 'back seating' them to silence the worn and vibrating stems.

= = = = = = = = = = = = = = = = = = = = = = = = = = =

Retired U.A. Local 1 & 638 ~ Measure Twice & Cut Once

Post Reply

 Re: Noisy pipes when toilet refills (after installing new toilet)
Author: hj (AZ)

Defective fill valves. That problem usually happens after several years but could happen if the company uses an inferior fill valve.

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.