New irrigation installation being installed thursday, any advice?

Discussion in 'Irrigation' started by ls3c6, Jul 17, 2012.

  1. FIMCO-MEISTER

    FIMCO-MEISTER Banned
    Messages: 18,668

    Okay lets use 30 gpm
    With our aptly named Badger Meter at 1" there will be 2.5psi pressure loss at the meter.
    http://www.badgermeter.com/getdoc/9670869d-3d4a-490f-baba-f93610c35fc8/rd-t-1-pdf.aspx
    3/4" Badger meter the max they will measure it for is 25gpm to only have 2.5psi pressure loss would have one around 15gpm.
    http://www.badgermeter.com/getdoc/2b9c2e59-bdf6-4745-86a3-c2df3ecf7f27/RD-T-5_8x4_4-BZ.aspx

    Regardless though boots is correct that the 1" copper service is the limiting factor since 15gpm is the max one can use without exceeding 5fps
    http://www.irrigationtutorials.com/copperloss.htm
     
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,578

    With modern 5/8~3/4 meters (the loss curve below is from a Badger 5/8~3/4 meter) there isn't any advantage gained by a switch to a one-inch meter, when there's a long run of copper upstream. The copper is the limiting factor, especially if you are going to pay attention to water velocity.

    meterpressureloss~5-8~3-4.png

    copperpressureloss-typeK.png
     
  3. FIMCO-MEISTER

    FIMCO-MEISTER Banned
    Messages: 18,668

    Did I not agree with you in my last post? Did I not acknowledge the rightness of your mind? Do I need to grovel?

    Having said that I've seen some big increases in flow from swapping street meters. Especially if its one of those true 5/8 meters with the s copper on each side of it.
     
  4. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,578

    no groveling required - I never saw your post - I was working on making images from charts
     
  5. 1idejim

    1idejim LawnSite Fanatic
    Messages: 10,610

    This is an interesting topic so what is the max zone size for each meter?
    Posted via Mobile Device
     
  6. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,578

    I saw enough 20 gpm systems fed from true 5/8 meters to know the meters can run at max speed and no worries
     
  7. ls3c6

    ls3c6 LawnSite Member
    from Midwest
    Messages: 112

    system is being installed as we speak, i suppose if i run each zone and it doesn't send water HEAD TO HEAD then i complain, until then we can only speculate :)
     
  8. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 49,578

    you call city hall and order them to raise the water pressure :realmad:
     
  9. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 26,159

    Or take a walk downstairs and see if there is a PRV, if so , turn it up.
     
  10. bx24

    bx24 LawnSite Senior Member
    from MA/TX
    Messages: 503

    That is why I install heads 5 ft under max throw when I measure max PSI..I could do 33 easy but do 25 ft. Well worth it..Heads are cheap and keep customer happy.
     

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