Adjusting Pressure Reducing Valve
Posted by Ken on May 05, 1999 at 22:30:47:
I have a Watts Regulator Model 25AUB pressure reducing valve (stated range is 25 - 75 lbs) just after the main input valve into my house.
It has a screw adjustment with a locking nut. The city has stated the water pressure in the main on our street is 60 lbs,
but when I recently turned on sprinkler system, there is not enough pressure to reverse the impact sprinkler
heads. I have taken the heads of the system and flushed the line, to no avail. How do I adjust this valve to increase pressure
(screw in or out?) without increasing too much to blow the pressure valve on my hot water heater?

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