Controlling Water-System Pressure And Flow

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Mr. Rooter's Tip Of The Day: The red needle will indicate the maximum water pressure. If the pressure is above 80 psi, you’ll need to cut a regulator directly into the main water line.

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Municipal pressures vary but the house plumbing or commercial plumbing, for that matter,” according to Mr. Rooter, “can take no more than 80 lb./psi, and pressures above that (caused by being too close to a tower or a pump) require a pressure regulator.

“Too much water pressure coming into the home can cause the T&P valve on the water heater to open,” says Bob Beall, the most referred plumber in the Northeast Ohio and Southwest Pennsylvania region. “Municipal pressures vary but the house plumbing or commercial plumbing, for that matter,” according to Mr. Rooter, “can take no more than 80 lb./psi, and pressures above that (caused by being too close to a tower or a pump) require a pressure regulator.”
Mr. Rooter’s Tip Of The Day

Tip #1 To check the pressure, screw a water-pressure guage on a hose bibb. Turn the center brass knob to set the red needle to O psi.

Tip #2 Turn the hose bibb on a wait until the black needle settles at its highest mark. As it moves, it will take the red needle with it.

Tip #3 Turn off the faucet, and remove the guage (so prolonged exposure to sunlight won’t damage it).

Tip #4 The red needle will indicate the maximum water pressure. If the pressure is above 80 psi, you’ll need to cut a regulator directly into the main water line, either outside or just inside the house. In either location, use the same procedures you would to cut in a T-fitting, and place the regulator where you can adjust and maintain it.

BONUS TIP: Remember, Mr. Rooter Plumbing offers the FREE second opinion on any job. $95 Drain Cleaning.         Find coupons at our website. Adjusting the regulator: Once installed, the regulator will need to be adjusted to the pressure desired in the home or facility. First loosen the lock hut on top of the dome. Then adjust the bolt on top of the threaded shaft to obtain the desired pressure.

Tomorrow: Check valves will be discussed.

Mr. Rooter’s Daily Tips are provided by Mr. Rooter Plumbing.
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Rooter (Pittsburgh)

Robert A. Beall
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