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    eckhardt's Avatar
    eckhardt Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 23, 2015, 07:11 AM
    Water pump pressure switch works intermitently. Sometimes it cuts in...
    Square D (30-50) cuts in intermitently. Installed new switch. Same problem.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    May 23, 2015, 07:05 PM
    What kind of pump, above ground or submersible?
    What does pressure gauge show when pump kicks on?
    Do you have a check valve in the system? If so, is it between the switch and the tank or is it between the switch and the well?
    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
    Uber Member
    		  
    #3

    May 24, 2015, 03:56 PM
    Be sure to also replace the little pipe leading to the switch. Clogs easily.

    Is the switch within three or four feet of the tank? If not, it needs to be.

    Might add that you need to be sure the tank is pressurized correctly. With system off and pressure drained to zero, tank pressure should be two pounds BELOW the cut in pressure. This is not likely your problem, but it is easy to do and I have seen it cause strange problems that I would not have thought it would be connected with.
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