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Thread: Rapid Cycle Well Pump

  1. #16
    DIY Junior Member warrens's Avatar
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    thanks

    i will hunt for a check valve then-I guess it could be down the well?

  2. #17
    Moderator valveman's Avatar
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    The Check Valve is usually on the pump itself. Also check to make sure you don't have too much air pressure in the tank. The tank bladder hitting the bottom can also cause the switch to bounce.
    Last edited by valveman; 05-22-2013 at 09:23 AM.

  3. #18
    DIY Junior Member warrens's Avatar
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    Do you both agree therefore, that I probably don't have a hole in the pipe somewhere down the well-which is the issue I seemed to get often before I replaced the pumptech?

  4. #19
    Moderator valveman's Avatar
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    Quote Originally Posted by warrens View Post
    I have water in the well and if I turn off the RAPID CYCLING reset then the pump works fine. Otherwise it seems to go into rcyc when it reaches the cut off pressure.

    The Cycle Sensor is supposed to go into RCYC when the pump shuts off, if the pump run time was not as long as the Rapid Cycle setting of the Cycle Sensor. In other words, if the Rapid Cycle feature is set for 30, the pump must run for at least 31 seconds before the presure switch shuts it off, or the Cycle Sensor will go into RCYC fault and not let the pump come back on.

  5. #20
    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by warrens View Post
    i will hunt for a check valve then-I guess it could be down the well?
    If you have a sticky checkvalve, you should notice some water hammer when the pump shuts off. Basically what happens is water starts to rush back to the well for a moment before the checkvalve slams shut. It also causes the needle on the pressure gauge to bounce. Take off the cover from the pressure switch and watch the contacts to see if there is bounce there. Could simply be a bad switch.

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