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# CFM thru 3/8" hose.

Discussion in 'Irrigation' started by jcom, Jul 26, 2010.

  1. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,593

    Has worked for me since 1965. :dizzy:
     
  2. jcom

    jcom LawnSite Senior Member
    Posts: 791

    Thanks Bootster,

    I'll have a look.

    John
     
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,415

    Grainger has a line or two of compressor pumps, and they probably still offer Ingersoll Rand pumps. The IR pumps will be heavyweights, with head unloaders. Grainger's own pumps might not have head unloaders in the smaller sizes. There's a general rule of thumb for selecting a gasoline engine to match up with a pump meant for a certain size electric motor, which is to multiply the electric motor horsepower by approximately two. The pumps on those units you shopped are probably meant for 5 HP electric motors.
     
  4. irritation

    irritation LawnSite Gold Member
    Posts: 3,139

    I can't imagine using a dinky compressor in your climate with a large number of clients. I use a 175 cfm tow behind with a full size extended cab pickup and get in some very tight spots. I use a hose reel with 200' of 3/4" hose and I'm usually in and out in 15 min. for most res.
     
  5. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,415

    I like a truckmount for those homes with switchback driveways. For someone winterizing from a controller (valve location yet unknown) there isn't anything for those hundred-odd cfm to accomplish.
     
  6. AI Inc

    AI Inc LawnSite Fanatic
    Posts: 25,148

    Sure there is. a raindial will run 3 zones at once . A pro c with rb valves and one can continualy bounce thru the whole system.
     
  7. irritation

    irritation LawnSite Gold Member
    Posts: 3,139

    My pressure is easily adjusted and I blow out many systems one zone at a time. I have some hydraulic systems that hate air and sometimes takes a minute or two before a zone kicks on.
     
  8. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,415

    If you could winterize a system in ten seconds, you still have to pack up and drive to the next job. There is only so much time you can save.
     
  9. irritation

    irritation LawnSite Gold Member
    Posts: 3,139

    It's nice to be able to blow out a 4 zone res. and go a mile up the road and blow out a 50 zone com, with a 3" main with the same compressor.
     
  10. jcom

    jcom LawnSite Senior Member
    Posts: 791

    To each his own, I say. For the real go getters, a trailer and a 185 CFM is the way to go. I am content to do my 2-3 hundred residentials and call it a good year. But that is my choice.

    If I needed irrigation to pay the bills, I would think different I am sure. But I don't. Irrigation now is more or less a hobby that will pay for my recreation.
    And put aside a bit for my long term health care, I suppose.

    That being said, I want to stay with an easy and portable truck mount for my hobby. I will look into a large single stage per the Bootster and see what happens.

    Thanks for the opines.

    John
     

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