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Sump Return Pump Non Return Valve

Discussion in 'Help and Advice' started by Sorted7, Mar 12, 2019.

  1. Sorted7

    Sorted7 Registered

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    ive just start with my first ever sump, only been running a couple of day but I was wondering is there was such thing as a non return valve for the return pump?. I’m a bit nervous about the tank self sypthoning if there’s a power cut. It wouldn’t fill the sump but I thought better to be safe. Any help and advice on sumps would be greatful. Many thanks
     
  2. jim_fitz

    jim_fitz Admin Staff Member

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    Do you have a weir ?
     
  3. Sorted7

    Sorted7 Registered

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    Hi, yes I have a weir in the corner, I’ve made it all myself. I think I’ve worked it out now as when I cut the power to the return pump it self syphons just to the out let hose height and doesn’t fill the sump up to much. Alls looking good so far. Just have to break in my skimmer
     
  4. jim_fitz

    jim_fitz Admin Staff Member

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    So if you keep the return quite high
    The syphon will break
    Just need to ensure there is capacity in the sump
     
  5. screwloose

    screwloose Registered

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    Easiest way is to drill a hole just below the surface on the return pipe

    One way valves are at best temperamental
     
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