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:
Author:
undercb (AL)
I have searched and read through a lot of the posts here and haven't found anything that sounds quite like I am seeing.
We have recently moved into a house that is roughly 10 years old. After moving in we noticed a knocking in the pipes but it only does it while draining not while the water is running. For instance, my wife will get in the tub and the whole time it is filling there is no noise at all. She pulls the plug and as it is draining we start hearing some knocking. It will be stronger and more frequent to start, once a second, and then over the next 2 to 3 minutes slowly subside to once every 15 to 20 seconds before finally quiting. It only does this when the tub drains or my wife runs her sink in the same bathroom for a few minutes. It is an upstairs bathroom.
The only thing I can come up with is a blockage in the drain causing this but figured I would check for some better/different ideas.
Thanks for any insight anyone can provide.
|
Post Reply
|
Author:
dlh (TX)
sounds like the drain pipe for the tub and sink (tied into one line somewhere) is to tight in a spot and the warm water makes it expand causing the ticking
- - - - - - -
PLUMBERS "Protecting The Health Of The Nation"
|
Post Reply
|
Author:
PBwrencher (WI)
What you are hearing is the expansion of the drain pipe rubbing on a floor joist or stud as the hot water runs through it when the drain on the tub is pulled and then the pipe cools and contracts slowley. This happens all the time when plastic pipes are installed to tight against wood framing, you or a plumber would have to find the area that is rubbing and expand the hole or cut away a very small amount of the wood to stop the rubbing/knocking.
11-3--07, 3:45pm
- - - - - - - - - - - - - - - - - - - -
3 years before Google started PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]
|
Post Reply
|
Author:
packy (MA)
ditto..
aggravating but harmless.
|
Post Reply
|
Author:
rjones0281 (MO)
ime asking a question rather than offering advise here but is it possible to locate the sound sourse to a spesific spot and drill a small hole and inject some self exspanding foam ( this might lock the drain pipe into a postion were it cant move so much from side to side or iny at all) is it that anoying or does this problem just have to go? just trying to save some sheet rock work!
|
Post Reply
|
Author:
redwood (CT)
And it just might create a whole new tight spot full of creaking squeaking foam. I wouldn't!
- - - - - - - - - - - - - - - - - - - -
Since 1995 (3 years before Google started) PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]
|
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: