replying to trashmanvic, Frank wrote:
I also have a McDonald 75lb pressure valve between my pressure tank and the
line into my home. It just partially failed. I tightened the top screw (tho'
the McDonald literature says not to adjust in the field, they are preset at
the factory). Now my 40/60 switch kicks off at precisely 60lbs, as it is
supposed to. But the in-line pressure gauge shows the pressure in my line
continuing to rise (AFTER the pump stops) to 70-72 lbs. Did you find a
solution? PLease share, if so. Thanks


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