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System keeps leaking and banging

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HooKooDooKu

Supreme Member

Posts: 683

11

Thursday, September 22nd 2011, 2:32pm

You shouldn't need a pressure guage to determine if you have a Pressure Regulator in your house or not. You should be able to determine that visually.

Most likely, you've got a meter at the curb and a single water line comming into the house somewhere underground (either in a basement or crawl space, unless this is a slab home). Once the water line enters the house, there is likely a Tee that feeds a hose bibb (the one I mentioned that comes before the regulator). The water main should then pass through something that looks like this PRV. After the PRV, there should be another Tee that feeds the hot water tank. From there, the rest of the water main and the hot water tank exit pipe should feed all the branches to the house.

Now it's not a bad idea to get a pressure guage. They are <$10, and you can check that your PRV is properly set to about 50psi. The set-screw on the top of the PRV is what allows the pressure to be adjusted. The setting from the factory is usually 50psi.
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