On demand pump

Discussion in 'Irrigation' started by Mike Leary, Apr 19, 2008.

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  1. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,070

    Whenever possible, I use this system, no Cycle Stops, Cla Vals, zoning
    pressure problems.:)

    DSCN0682.jpg
     
  2. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    On Demand? Does it work using a flow switch?
     
  3. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,070

    The control module is inside the garage, I'll post a pic.
    but it shows very little of how it works.The wire in the middle comes from
    the module to the transducer. Basically, set the pressure
    and let 'er rip. :)
     
  4. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    Nice Foot!
     
  5. Dirt Boy

    Dirt Boy LawnSite Senior Member
    Posts: 487

    More details please?
    Explain how this works, web site? etc.

    Thanks, always looking to learn a bit more!!
     
  6. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 48,014

  7. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,070

    Thanx for the usual sage advise. :)
     
  8. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,070

    I'll get some more info tomorrow, the pump actually changes pitch depending
    on the demand of the zone so the pressure stays constant. I think London
    posted something on them a while ago, maybe he'll come on.
     
  9. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    Oh, your talking about variable speed pumps.

    Yeah, I've worked with them. :)

    The controller allows you to set the desired PSI, and it varies the impeller speed and vane pitch to hold it at that pressure. Nice setup, but not cheap.
     
  10. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 22,070

    About a grand more than a standard submersible & cycle-stop, but, wow!
     
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