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Low Pressure & Finished Basement

Discussion in 'Irrigation' started by simonkodousek, Jun 23, 2007.

  1. simonkodousek

    simonkodousek LawnSite Member
    Messages: 19

    I'm planning on installing a residential irrigation system, but there are two problems.

    #1 - The water pressure is only 35 PSI.

    #2 - The basement was finished, so I can't run another pipe.

    Is there a way to fix this problem? How would I go about installing the system?

    Thanks! :)
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,448

    Is there a pressure reducer in the plumbing?
  3. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,052

    What are your GPM????
  4. unit28

    unit28 LawnSite Bronze Member
    Messages: 1,554

    I saw a guy dig out a hole in front of his basement and make a hole
    in the wall......
    with a 30-06, cool huh
  5. simonkodousek

    simonkodousek LawnSite Member
    Messages: 19

    I measured about 8 GPM. I think this could run 2 gear heads at a time, right?
  6. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,052

    how much turf/shrub bed are you watering?

    if you wanted to mak out you prob could get 4 2 GPM MP ROTORS...but thats pushing it which is what i was not taught to do....always leave a little room for extra....But i would suggest you research MP Rotor made by the Walla Walla Corp...

    good luck...
  7. simonkodousek

    simonkodousek LawnSite Member
    Messages: 19

    No shrub beds, but 83' x 75' of turf. A picture is below...

  8. Rainman7

    Rainman7 LawnSite Senior Member
    from NY
    Messages: 290

    What do you mean you cant run another pipe? Where will you tee off the main? Is it well or city?

    That looks like a pretty big property to run on 8 GPM and still leave them some water to brush their teeth.
  9. londonrain

    londonrain LawnSite Silver Member
    Messages: 2,129

    Call your local water purveyor and ask for a psi and flow test on the meter.....
  10. PurpHaze

    PurpHaze LawnSite Fanatic
    Messages: 5,496

    YIKES... you're in big trouble. If you can't make a point of connection in the basement then I'd contact your local public works department and see about the feasibility of tapping into the supply closer to the street and maybe setting up a separate meter just for the irrigation. The whole system would then be designed off the GPM/PSI at that new POC and then start subtracting PSI for the backflow, valves, pipe sizes/lengths, etc.

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