measuring actual GPM of head

Discussion in 'Irrigation' started by zliminator, Jun 24, 2006.

  1. zliminator

    zliminator LawnSite Member
    Posts: 82

    If I have 1 or more heads connected to the same pipe as a pressure gauge and measure the pressure before and after turning on the head (using a valve between the gauge and head) can I calculate the GPM? Or would it be easier to just try and collect the water from the head in a bucket for a minute?

    dan
     
  2. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    Better to just take the brand, model and nozzle number and look it up on the web site or in a catalog. :)

    Are you talking about a rotor or spray pop-up?
     
  3. zliminator

    zliminator LawnSite Member
    Posts: 82

    If I can't find it I'll just put a plastic bag over it and let it fill up a bucket.

    Dan
     
  4. Good luck with that.....
     
  5. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    Regardless what you do you're in for an experience. :)

    Why are you wanting to do this? Part of Ninrocket's experiments???:rolleyes:
     
  6. zliminator

    zliminator LawnSite Member
    Posts: 82

    looking it up on the internet just sounds like too much work.

    Dan
     
  7. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    Sheesh... Another guy that wants to reinvent the wheel??? :laugh:

    Must be that southeast humidity wrecking some brain cells down there.
     
  8. zliminator

    zliminator LawnSite Member
    Posts: 82

    now that I think about it, it could be quite a mess. I just wanted to see for myself and maybe see how it compares to the published values.

    Dan
     
  9. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    LOL... Go for it dude. Then post a pic of your sorry wet a$$ when you're done. :drinkup:
     
  10. Mr. Vern

    Mr. Vern LawnSite Senior Member
    Posts: 632

    What if he just built a custom bucket with a diameter equal to that of the spray head. He could then drill a hole in the center, slip it over the head and silicone it down. Then after it ran a minute he could use a turkey baster to pull the water out and put it into a calibrated measuring cup. That's gotta be easier than looking up the specs on the mfgr's website. LOL
     

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