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Old 01-02-2016, 11:00 PM   #16
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I have to mention this some cities have raised the outside pressure on the water lines due to having older system with undersized mains. I would also call your water provider to find out what the outside feed pressure is. If it is high you may need more then one PRV valve to lower the house to 60 lbs.

A single prv can only do so much.

Info to read up on

http://www.watts.com/pages/learnAbou...s.asp?catId=64

Last edited by Ghostmaker; 01-02-2016 at 11:03 PM.
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Old 01-03-2016, 06:00 AM   #17
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OP, does you house have sprinklers? If so I believe they usually operate at full city pressure.... at least they do here and it happens to be 85 psi, which is what my house would go to when my PRV failed

In my house there is a separate gage to show the sprinkler system pressure. The feed for it is just upstream of the house main shutoff valve (sprinkler system has a separate shutoff that is tagged open) so it is easy for me to compare city pressure to house pressure on the 2 gages. If you have sprinklers but for some reason the feed is not contiguous with your house water supply maybe the gage is elsewhere.
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Old 01-03-2016, 11:15 AM   #18
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No sprinklers and unfortunately no gauges installed in the lines.
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Old 01-05-2016, 10:22 PM   #19
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So, I had a plumber come out today. He confirmed my pressure readings with his gauge and checked PRV and expansion tank. Builder grade PRV wasn't functional, and expansion tank was filled with water and wouldn't take any air. Both were replaced, with an upgrade on the PRV to a sturdy looking Watts model. Pressure is now at 60 PSI.

Thanks to everyone for the insight!
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