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    spintly's Avatar
    spintly Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Jun 4, 2007, 05:34 AM
    Pressure relief switch
    Hello,

    What are the steps to replace a schedule D pressure relief switch. My old switch has a manual override lever on it that I think manually restores power to the switch. I was told that I need to drain the tank of all water and turn off the power to the switch. I also heard that I need have 28 pounds of air in my holding tank if I am running a 30/50 switch.

    Thanks
    spintly's Avatar
    spintly Posts: 3, Reputation: 1
    New Member
    		  
    #2

    Jun 4, 2007, 06:08 AM
    Respoding to my original post. The pressure relief swith is a square D, not a schedule D switch.

    Thanks
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Jun 4, 2007, 06:31 AM
    To replace your pump control switch shut the power off to the pump and bleed the pressure down,(no need to drain the tank just open a faucet) and replace with a similar unit.
    ". I also heard that I need have 28 pounds of air in my holding tank if I am running a 30/50 switch."

    The correct setting for a bladder tank is 2 pounds under the cut in point so 28PSI would be right for a 30/50 control box.
    Good luck, Tom
    spintly's Avatar
    spintly Posts: 3, Reputation: 1
    New Member
    		  
    #4

    Jun 4, 2007, 11:02 AM
    I installed my pump control switch. It is working well now. Thanks for your help.
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