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Old 12-06-2013, 09:10 PM   #1
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Water pressure too high?


Hi Guys,

I just tested my water pressure from the washer outlet, which is about 5 feet from where the water enters the house. I always knew I had good / high pressure, but it registered at 92 PSI.

I just bought a 85 gallon Marathon water heater and have all the stuff to re-do all the plumbing with Aqua Pex with expansion connections.

Should I buck up and get a pressure regulator valve or is 92 PSI ok? If I get the regulator, where should it be installed (close to the water tank or closer to the water entry)? Both would be accessible.

Thanks

Jeff

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Old 12-06-2013, 09:15 PM   #2
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Water pressure too high?


UPC states max. pressure to be 80 psi, 60lbs is the "preferred" pressure.

install the PRV after the house valve and before any branch lines or fixtures.

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Old 12-06-2013, 09:22 PM   #3
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Water pressure too high?


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Originally Posted by TheEplumber View Post
UPC states max. pressure to be 80 psi, 60lbs is the "preferred" pressure.

install the PRV after the house valve and before any branch lines or fixtures.
Sold. Would this be OK?

http://www.homedepot.com/p/SharkBite...specifications
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Old 12-06-2013, 09:22 PM   #4
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Water pressure too high?


I didn't know any houses didn't have PRVs. Mine's in the crawl space, right where the main enters the house. Do you have an expansion tank? When they replaced my water meter, the new one included an anti return valve. Although the water company never mentioned it, I figured out real quick (using a water pressure gauge with a tell-tale) that I needed an expansion tank in the line.
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Old 12-06-2013, 09:25 PM   #5
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Water pressure too high?


Currently, no. There is no expansion tank on my setup (50 gal tank with copper pipes and gate valves). However, I have a new 5 gallon for the new setup I'll be putting in.
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Old 12-07-2013, 10:20 AM   #6
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Water pressure too high?


With that much pressure at can cause all kinds of plumbing issues.
Ghost flushing in the toilet, noises when flushing, hot and cold cross over in the faucets, leaking fittings, ECT.
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Old 12-07-2013, 01:33 PM   #7
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Water pressure too high?


What you got is ok adjust the output to 60 lbs. You will also need to install a hot water tank expansion tank sized for it on the cold water.
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Old 12-07-2013, 05:01 PM   #8
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Water pressure too high?


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Originally Posted by ratherbefishing View Post
I didn't know any houses didn't have PRVs.
Mine's in the crawl space, right where the main enters the house.
How old is your house?

Until a few years ago (20-30 in old phart time) city water pressure was rarely high enough to need either a PRV or an expansion tank. As lines were extended into the burbs it became neccesary to pump at higher pressures.

My house has incoming at 110psi (I've seen 120)
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Old 12-07-2013, 05:19 PM   #9
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Water pressure too high?


House was built in 1958 or so. I've been in it since 1990. All the galvanized in the house was replaced with copper 7 or 8 years ago. New PRV. 2 years ago, I had the galvanized main and Orangeburg waste pipes replaced. Another new PRV. Water pressure was way low. The county replaced the pipe from the main to the meter and the meter. (Watching the mole go under the street was really cool. That's when I had to install the expansion tank.

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