When turning on any faucet or sometimes flushing a toilet in the house, we hear rumbling sounds in the pipes in the basement. This sound continues for about 30 seconds sometimes or we can turn on anyone of the faucets within the house and stop the sound. Can you tell me what kind of problem we may be having within our home?
Since all the water that comes out any one of your taps is going to mean water has to flow through the water meter, I'd appoint someone to listen to the water meter while someone else opens a faucet or flushes a toilet.
If that doesn't lead you to the culprit, invest in a cheap "mechanic's stethoscope" for about $15 wherever automotive tools are sold. A mechanic's stethoscope is very similar to a doctor's stethoscope, except that it has a metal probe that you touch against parts in a machine to determine which part is causing noise. Since noise is nothing more than pressure waves in the air caused by a vibrating part, if you touch the probe of the mechanic's stethoscope to the vibrating part of a machine, you'll hear the same noise, only much louder.
You can therefore use the mechanic's stethoscope to determine the source of the noise in your piping. The rumbling noise will be loudest when the probe is touching against the part of your plumbing that's causing the rumbling noise.
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