Latest Discussions : Plumbing

kenship

07:25PM | 04/08/05
Member Since: 04/07/05
1 lifetime posts
Hi! My name is Ken. I live in a townhouse(5-6 years), my neighbors (both sides) are experiencing rattling in water pipes between the walls. It happens randomly and only from spring to autumn, ie no problem in winter time. I looked into other posting regarding rattling pipe but couldn't exactly match my scenario. Any help would be greatly appreciated!!

Ken

RayVinZant

09:33AM | 04/23/05
Member Since: 08/29/04
227 lifetime posts
This is a tough one, but if I had to guess I would say its caused by expansion and contraction. You probably have two issues. The home gets larger in the spring, summer and fall and contracts in the winter. You might not think it does, but everything expands when it gets warm and shrinks when it gets cold (except water). In addition the pipes expand and contract when they heat up from the hot water lines, and cool down when you run cold water through them. Hot water pipes have a water change of (Room Temperature) 70 degrees to 135 degrees as the water flows through. The cold only changes from 70 down to 50. Water pipe will expand about 2-1/2 inches in 100 feet of hot water. Therefore, as it expands inside your walls it often rubs against the holes causing it to make noise. It may be that in one season, the pipes are further away from the wood than the other. Of course this is just a guess.

Good Luck

Raymond VinZant Plumbing Prof.


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