Pressure change and noisy pipes


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Old 10-15-18, 10:18 AM
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Pressure change and noisy pipes

A couple months ago I noticed my water pressure would start out fast when I first turned on sinks, tub, etc. but then after a few seconds would come back down to normal. Recently I hear a moaning sound coming from my pipes when after I flush any of the 3 toilets in the house (when tank refills) or when I first turn on the tub faucet to take a shower. It only does this for a few seconds each time and only does this if the water has not ran for a period of time. I do not hear the noise when turning on a sink faucet. Could this be a pressure issue?
 
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Old 10-15-18, 12:46 PM
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Are you still experiencing higher pressure when a faucet is first opened or has that issue gone away?
 
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Old 10-15-18, 07:48 PM
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No thatís still happening.
 
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Old 10-16-18, 06:26 AM
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If the water pressure or flow is strong when you first open a faucet and then the pressure drops is a sign of a restriction somewhere in the piping. In older homes it's often a sign that the water lines are corroding closed but sometimes it can be caused by a valve that's partially closed.
 
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Old 10-16-18, 11:11 AM
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I'd also consider checking the pressure of your system. A pressure gauge that screws onto an outdoor faucet or laundry faucet is pretty cheap. Overnight, as the water isn't being used, but still being heated is most often the time that the pressure increases. You'll want to check the pressure during the day, and also after a few hours of non-use.

You should be around 40-50psi, with a max of around 65 or so.
 
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Old 10-16-18, 02:47 PM
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Hi, I had the same problem a couple of weeks ago. I put my pressure gauge on a hose bib with no water running the pressure was about 90 lbs , with the water running pressure dropped to 60lbs.
I rebuilt the pressure regulator and cured the problem.
Good Luck Woodbutcher
 
 

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