Poor design? Aliens?

Discussion in 'Irrigation' started by hoskm01, Sep 28, 2007.

  1. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    A neighborhood school nearby, check out the "field".

    Give me your opinion of the problem. Not a job im looking at, just an interesting sight from above.




    [​IMG]







    Good example of why you space head to head. Map says spacing is 55ft from center to center of each circle.

    Purp, I know this would never happen at one of your sites.
     
  2. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,916

    Triangle non-spacing rears it's ugly head..again. Is it my monitor, or
    did someone forget to turn it on?:hammerhead:
     
  3. Great Great Pic.
     
  4. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    I forget, who has the peeve on pic size in here? Someone with Dial up no less, I'm sure.
     
  5. Boots Wet Boots
     
  6. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    Right, right... This ones for you Boots.
     
  7. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    Hard telling what it was subjected to without actually being on the ground and seeing it firsthand. Could be a combination of problems. We get a lot of our football practice fields that show shoddiness more from excessive use than from any other problem.

    Maybe the 55' is/was head-to-head spacing and something's gone wrong. We have some fields with 67' spacings that are crap now but I imagine when they were first installed everything was OK. However, as pump efficiencies or other water sources decline... who knows?

    Not by me as I always include buffers in the designs. However, I know I have to check out a few things when I go back to work on light duty Monday that aren't properly working. Seems I can put systems in and then someone else comes along, uses the same sprinkler heads and there's nothing but problems. I may spend a lot of time on mysteries of this nature but I'm usually not quick to judge. I always want as much info as I can get and often it's a combination of problems that cause the overall shoddiness.
     
  8. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,401

    My compliments to the image editing - honking big photo, and less than 90KB file size.

    As to the 55 foot spacing, that could have been 'textbook triangular' back in the day, and it could cover effectively, with impacts spraying 40 feet.
     
  9. Mjtrole

    Mjtrole LawnSite Member
    Posts: 226

    Soccer fields usually use 60ft spacing for heads, maybe a supply problem or the pump has lost a leg and isn't running full speed.
     
  10. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690



    Theres no doubt that 55' is a doable distance, done properly. You can do 115 feet with certain heads and the right pressure/flow. But...

    A)This school is maybe in its third year, brand new neighborhood etc...
    B) Schools dont pump, dont have pumps, cant afford pumps around here. Its city supply on maybe a 2" line from the main to the school if youre lucky.
    C) They've got some cheap rotor in the ground, cant tell what they are, didnt want to get arrested for jumpin the fence. The throw/pattern already looks like crap.

    I drove by yesterday to see it first hand. By chance, a zone was running. Each head sprays about 2-6 feet over the farthest reach of the next head, giving you the green honeycomb pattern. Obviously not enough water to begin with, but horrible coverage to boot.

    If I didnt know any better, I would solicit them to take on a fix. But schools dont have any money here, and dont sub out landscaping/irrigation. Purp, can you call in a favor or possibly see if they can get somebody out there besides the janitor?
     

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