Cali_Chavs
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I live in a 3 yr old home in OK. At first, no problems with water pipes. Then, we started noticing some "knocking" or "pulsing" going on with the water pipes throughout the house. This coincided with new construction in our development. The knocking has intensified recently - loud enough to wake someone up. It seems to occur when the washer is running and/or when the toilet is flushed. I hear the knocking at the kitchen sink, behind the refrigerator, and behind a wall in the master bedroom. When I turn the sink on, the water seems to pulse (like there are pressure changes back and forth) along with the knocking, if that makes sense. I called a local plumber out. He put a gauge on an outdoor faucet, closest to the city's main line. The pressure would change dramatically from around 80 to 140 to 200. He says he has never seen pressure that high. He checked 4 houses around our home and they were all a constant 80. The plumber also said that the gauge on the city line was spinning and to him that looked like the problem. Not sure if there is a regulator there that is not working. He says we should call the city immediately b/c we may experience a busted pipe with the kind of pressure. The city (some lady on the phone probably reading a computer screen) told us that it is not their problem - for some reason I wasn't surprised. We have large arrestors at the hot water tank and the home passed inspection. The plumber thinks the problem is not in the house. Any ideas on what I should do next?