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basalisk · Joined: 07 Dec 2002 Posts: 1

We have been in this house for over 2 years. Just in the past 2-3 months a very loud noise occurs randomly, usually in the very early morning when no one is using water. The noise starts quietly, growing in intensity to the point of sounding like a fog horn. It lasts from 5 to 10 seconds. It is diffently coming from the pipes. We don't have any leaking faucets or running toilets. I have had a plumber here to inspect, and he found nothing obvious. Without being able to hear the noise, he really didn't know where to start looking.

Any clues would be helpful.

Sleepless close to Seattle.

Silentcrow · Moderator Joined: 10 Dec 2002 Posts: 29

change the ballcock in the toilet. =) there may be a slight leak in the flapper as well. wwhen the water in the tank leaks out it will cause the ballcock to fill the tank. at the very end of the fill cycle is when you should here the noise. It sounds like a fog horn or the bending of a hollow ships hull. I noticed that this is a Uk forum. I am an ex plumber in the US. plumbing codes and laws may differ. But i'm 80% sure that is what is happening.