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Thread: Sump Pump

  1. #1
    Join Date
    Dec 2008

    Default Sump Pump

    I just moved into a house where the sump pump cycles very often (every 3 minutes) when it rains for a prolonged period of time, and keeps running at this pace for at least a day or two. I'm concerned that the pump won't be able to handle the heavy rains and thaws of an Ohio spring.

    Can anyone help me figure out how to slow the frequency of times the pump goes off? I currently have a submersible pump that cannot be adjusted.

  2. #2
    Join Date
    Jan 2008

    Default Re: Sump Pump

    not sure if your saying it runs for significant period of time and then only has 3 minute rest periods or if it runs short cycles that the entire start, run, rest and restart time is three minutes.

    one thing is checking out the discharge path and that you have enough power to clear and not have it just recycle, IOW that you don't have a recycling fountain type circuit with the drainage going right back to the foundation. another thing regarding your concerns about flooding or failure is having a backup in case there is a power failure or failure of the primary pump itself or if the first pump gets overwhelmed. checking out the surface grade and making sure the water coming down on the house isn't going to the foundation gutter downspout extensions, etc.

    making sure you have a secondary check valve up in the discharge line that isn't leaking, isn't blocked (discharge line or second check is opening all the way - we had that problem for a while something crawled up and died there!) that the integral and secondary check valves work properly and that the power of the sump is enough to clear the line so that the discharge isn't falling back into the pit and repriming the pump might help, one way to see whats going on is uncover the pit and divert the discharge and measure it while you add measured amounts of water to the pit on a dry day to see if the system is functioning properly if all else is as checkingout from the outside about drainage, diverting the runoff and such. suppose it is possible your pump might have some gunk in it not sure what symptoms or concerns you are describing and what you've checked out, measured or observed.

    since not sure just what exactly your describing you might want to check out this article: http://www.wq.uiuc.edu/Pubs/SumpPumps-8-17-05.pdf
    Last edited by Blue RidgeParkway; 12-02-2008 at 10:16 AM.

  3. #3
    Join Date
    Aug 2007
    The Great White North

    Default Re: Sump Pump

    In addition ... check the discharge pipe from the pump outside to ensure it's not dumping the water near the house. If need be attach an extension hose to allow the discharge to be hasppen further away. otherwise if the pipe is too close to the foundation it will simply migrate back to the drain system and short cycling.

    Another thing would be to ensure there is a check vavle installed on the discharge pipe at near the pump and it's working properly. Otherwise if there isn't a check valve or it's not working ...... the water remaining in the discharge pipe will flow back increasing the volume of water in the pit after the pump shuts off.

    Here's a link describing where a check valve should be located .... http://www.lowes.com/lowes/lkn?actio...pSumpPump.html

    Hope this helps.
    "" an ounce of perception -- a pound of obscure "
    - Rush

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