On Mon, 23 Nov 2015 11:17:47 -0500, Retired wrote:

On 11/22/15 8:28 PM, Dom wrote:
I get a pretty loud thumping noise after I run the hot water, eg, after cleaning dishes. The thump occurs maybe once every 10 minutes. I've done a little Google-research, and I understand that the copper pipes are expanding, then contracting, and somewhere along the line they bang against a stud. That makes sense. That's sort of the sound I get. But I still have a few questions.

1. The thump continues hours after I've stopped running the water. Eg, I ran the sink at 5:00 and I still get a thump at 8:30. Not as frequent, but still there. Is this reasonable?

2. I don't know how long I've had this problem, but I don't think it was happening when I first bought the house some 20 years ago. Is there any chance it will just go away in a year or two?

3. My research convinced me that it can not be fixed, I should just live with it. Is that the opinion around here?


The last house I lived in for 25 years had a similar problem. When the
hot water in the master bedroom sink was run, we got a squeaking
sound. Time between squeaks would vary, up and down. Figured it was a
copper pipe that was rubbing against a stud, probably as the house,
built in 1971, shifted a little. We just "lived with it". Got to where
we just "tuned it out", not noticing it every time.

When I leave my house, and almost slam the door, about 4 seconds
later, I hear a noise. Not every time, but maybe 100 times already.
Never right away like one would expect. I always forget to turn
around until it makes the noise. Maybe if I turned around in time I
could tell where it was coming from.

It seems like a weight is hanging from a string, and when I slam the
door, like one pool ball being hit by another, the weight and string
pivot away from hanging straight down, they go out a ways, and then
fall back and that's when it makes the noise. But I have nothing that
could do that.