irrigation pump

Discussion in 'Irrigation' started by evergreen3, Jun 13, 2012.

  1. evergreen3

    evergreen3 LawnSite Member
    Posts: 32

    How far will a irrigation pump pull water before it gets to the pump. I need to pull water about 60ft to 70ft up hill before it gets to the pump. Will it work
     
  2. txirrigation

    txirrigation LawnSite Senior Member
    from Texas
    Posts: 977

    There are pumps that are designed to pull water up 100's of feet. It all depends on what kind of pump it is, and the demands of the system.
     
  3. evergreen3

    evergreen3 LawnSite Member
    Posts: 32

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  4. evergreen3

    evergreen3 LawnSite Member
    Posts: 32

    So a 1.5 hp pump from lowes will not work
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  5. Dripit good

    Dripit good LawnSite Bronze Member
    Posts: 1,081

    No it will not.
     
  6. jvanvliet

    jvanvliet LawnSite Gold Member
    Posts: 3,939

    Sure it can, depends on static head.
     
  7. cgaengineer

    cgaengineer LawnSite Fanatic
    Posts: 15,782

    It's easier to push water than to pull it...most pumps will pull about 25' max (especially irrigation pumps from lowes). Right now I'm pushing about 50' - 60' vert and about 350 total length through 1.25 pipe...and running a boaster at the top of the hill. The pump at the creek is 4 hp and although it will push 150 gpm, frictional and head losses are so great that I need a booster. I have plenty of water with just one pump but I lack pressure to irrigate, hench the second pump.

    It's best if you locate pump closer to the water source if you can. If you can't do this you may consider using a jet pump. For me wire cost is prohibitive so I am using a gas pump at creek. At the cost per 1000 gallon of water here I am still saving.
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  8. Dripit good

    Dripit good LawnSite Bronze Member
    Posts: 1,081


    Not even a chance with this pump.
     
  9. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,491

    It is physically impossible to lift still water as much as 35 feet in a suction line, because the water will begin to vaporize in the vacuum conditions in the suction line. If you have to have the pump 70 feet above the water level, you can use a more expensive convertible jet pump, with two pipes running into the necessary ejector assembly in the water. The amount of water you get with this kind of arrangement will less than with any other pump, because a good deal of the pump effort is in pushing water from the pump to the ejector assembly far below it.
     
  10. jvanvliet

    jvanvliet LawnSite Gold Member
    Posts: 3,939

    I have plenty of 1.5 POC pumps pulling water 100 - 150 ft from the source. Question is how much lift. Here I got about 5-10 ft lift from the lake or canal and 100+ to the pump. Check valve @ the source, once primed, not a problem.
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