Suggestions to relieve 'Moaning' pipes

heidizSeptember 5, 2011

Hi, Recently we noticed that when we turn on a faucet and/or flush the toilet, the pipes make a moaning sound. Could this be an indication of a major problem? We tried turning off the water at the main source, and "bleeding" the faucets because a neighbor suggested that, but it didn't work. Any other ideas? Thanks so much!

Thank you for reporting this comment. Undo
brickeyee

Sounds like pipes moving from thermal expansion.

There is not a lot you can do without opening walls to locate the place the pipe is rubbing (usually a bored hole in framing the pipe passes through) and then slip something in the hole to allow smoother movement.

The fix is often as simple as a few layers of wax paper wrapped around the pipe and slid into the hole in the wood.

The you get to patch the wall.

    Bookmark   September 5, 2011 at 2:36PM
Thank you for reporting this comment. Undo
davidro1

the neighbor was suggesting something that fixes old fashioned hammer arrestors, if you really really empty the pipes for a long time. Do you know what hammer arrestors are? web search this and post if it sounds like it may be relevant.

Did anything else change recently in the pipes, fixtures, plumbing, or studs? How old is the house?

    Bookmark   September 6, 2011 at 10:49PM
Thank you for reporting this comment. Undo
brickeyee

"Moaning" is not water hammer.

Water hammer arrestors are gas filled devices that help absorb the momentum of moving water when a valve is quickly closed.

The gas is compressible enough to absorb the energy of the moving water.

    Bookmark   September 7, 2011 at 10:37AM
Thank you for reporting this comment. Undo
asolo

Agree with brickeyee that this is not water hammer. I would be surprised if arrestors had any effect.

If the sound is what I think it is, it is likely confined to a specific location -- probably a valve.

For example, when a toilet flush-valve gets calcified "just so", and the water volume and velocity through it is "just so" it can "moan" or even scream. It's a resonance frequency thing. Cleaning or replacing the valve solves the problem.

Can you say if your symptom is actually from "the pipes" generally or is it coming from a particular valve or location?

    Bookmark   September 7, 2011 at 1:40PM
Sign Up to comment
More Discussions
Hot water backflowing into cold supply
OK, I'm rephrasing my question, as what I'd asked before...
pjb999
Doable...European sink & US bathroom pop-up drain and faucet?
if I purchase a small Belfast sink fron England to...
rantontoo
Salt-free water conditioning
Hi all, Considering installing a water softener in...
tucker_troy
Terminox ISM for iron/manganese removal
Hi, I have had a water softener with other assorted...
merlin2552
Under counter water filters…again
I've lurked here for over a year and have learned so...
motherwallace
Sponsored Products
Firefly Two-Light Warm Bronze Micro-Texture Glass Sconce
$75.00 | Bellacor
Bunny Williams Raffia Wine Cooler
Ballard Designs
Brass Pipe Coupling
Signature Hardware
Harbour Outdoor | Balmoral Chaise
YLiving.com
Luxury White Vertical Designer Radiator Heater 63 x 14 With Valves
Hudson Reed
Bell Pendant in Red
$199.99 | Dot & Bo
Barcelona Chair and Ottoman
IFN Modern
Creative Design Black Iron Water Pipe Table Lamp
ParrotUncle
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™