PRV making all kinds of noise?? - Plumbing Zone

drsplumbing · 11-01-2010, 07:26 PM

Was at one of my regular customers for a quick service call. They had an old watts prv that was leaking right after the water meter on a 3/4" main.
The customer had already bought a new pressure reducing valve. And like all customer bought stock it is a cheap piece of garbage. I installed it and it had a weep hole in the brass casting! So he returned it and got the same model same company. I installed it and it worked fine i tested the pressure on the house and set it for 60psi. Then 3 days later he calls me up complaining of noise in his water pipe. I get over there and test the faucet in the kitchen. When you turn it on with a small trickle the cold water main vibrates very bad and makes a whine sound that is very loud. Ive never heard anything like that. so i was playing with a ball valve after the prv. With a faucet wide open i can start to close the ball valve when it gets to 9/10ths closed the vibration and whine starts. then when i open it up all the way it goes away. Im going to pick up a WATTS valve which i always use and see if it helps. Has anyone ever incountered this problem?? Im a little perplexed because he never had this noise with the other prv in over 20 years!! Its driving me crazy!!

SlickRick · 11-01-2010, 07:56 PM

Quote:

Originally Posted by drsplumbing

Was at one of my regular customers for a quick service call. They had an old watts prv that was leaking right after the water meter on a 3/4" main.
The customer had already bought a new pressure reducing valve. And like all customer bought stock it is a cheap piece of garbage. I installed it and it had a weep hole in the brass casting! So he returned it and got the same model same company. I installed it and it worked fine i tested the pressure on the house and set it for 60psi. Then 3 days later he calls me up complaining of noise in his water pipe. I get over there and test the faucet in the kitchen. When you turn it on with a small trickle the cold water main vibrates very bad and makes a whine sound that is very loud. Ive never heard anything like that. so i was playing with a ball valve after the prv. With a faucet wide open i can start to close the ball valve when it gets to 9/10ths closed the vibration and whine starts. then when i open it up all the way it goes away. Im going to pick up a WATTS valve which i always use and see if it helps. Has anyone ever incountered this problem?? Im a little perplexed because he never had this noise with the other prv in over 20 years!! Its driving me crazy!!

Prolly a loose diaphram. How about a intro?

drsplumbing · 11-01-2010, 08:22 PM

sry dont know what an into is?

SlickRick · 11-01-2010, 08:27 PM

Quote:

Originally Posted by drsplumbing

sry dont know what an into is?

Tell us a little about yourself, type of plumbing, yrs, etc. You will be welcomed and receive more responses, kinda like the skull and bones.

Go to the link below.

http://www.plumbingzone.com/f3/

SlickRick · 11-01-2010, 08:41 PM

The chatter is being caused by a loose or soft piece of rubber. If the chatter was not there before the new PRV was installed, it is most likely the diaphram, and will need a new one, or replace the defective PRV. If you think it may be related to just one faucet, then you have a loose washer in the faucet or stop.

drsplumbing · 11-01-2010, 08:49 PM

thanks for the replies. And i posted an intro.

SlickRick · 11-01-2010, 08:52 PM

Quote:

Originally Posted by drsplumbing

thanks for the replies. And i posted an intro.

Thanks, I was typing a reply while you were doing your intro. We see all.

Cal · 11-02-2010, 06:01 AM

It's TRUE ,,, Loose diaphragm An ,, they do see ALL

11-01-2010, 07:26 PM	#1
drsplumbing Junior Member Join Date: Nov 2009 Location: Mass Posts: 8 My Photos	PRV making all kinds of noise?? Was at one of my regular customers for a quick service call. They had an old watts prv that was leaking right after the water meter on a 3/4" main. The customer had already bought a new pressure reducing valve. And like all customer bought stock it is a cheap piece of garbage. I installed it and it had a weep hole in the brass casting! So he returned it and got the same model same company. I installed it and it worked fine i tested the pressure on the house and set it for 60psi. Then 3 days later he calls me up complaining of noise in his water pipe. I get over there and test the faucet in the kitchen. When you turn it on with a small trickle the cold water main vibrates very bad and makes a whine sound that is very loud. Ive never heard anything like that. so i was playing with a ball valve after the prv. With a faucet wide open i can start to close the ball valve when it gets to 9/10ths closed the vibration and whine starts. then when i open it up all the way it goes away. Im going to pick up a WATTS valve which i always use and see if it helps. Has anyone ever incountered this problem?? Im a little perplexed because he never had this noise with the other prv in over 20 years!! Its driving me crazy!!

11-02-2010, 06:01 AM	#8
Cal Senior Member Join Date: Jun 2008 Location: Northern Virginia Posts: 1,568 My Photos	It's TRUE ,,, Loose diaphragm An ,, they do see ALL __________________ "The unforgivable crime is soft hitting. Do not hit at all if it can be avoided; but never hit softly."

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11-01-2010, 08:22 PM	#3
drsplumbing Junior Member Join Date: Nov 2009 Location: Mass Posts: 8 My Photos	sry dont know what an into is?

11-01-2010, 08:41 PM	#5
SlickRick Registered User Join Date: Sep 2009 Location: Gilmer, Texas Posts: 8,027 My Photos	The chatter is being caused by a loose or soft piece of rubber. If the chatter was not there before the new PRV was installed, it is most likely the diaphram, and will need a new one, or replace the defective PRV. If you think it may be related to just one faucet, then you have a loose washer in the faucet or stop.

11-01-2010, 08:49 PM	#6
drsplumbing Junior Member Join Date: Nov 2009 Location: Mass Posts: 8 My Photos	thanks for the replies. And i posted an intro.