Adding One Rotor

Discussion in 'Irrigation' started by DavidR, Nov 15, 2007.

  1. DavidR

    DavidR LawnSite Member
    Messages: 180

    Is it possible to add one rotor to a zone? I have a system with 8 zones. Most of these zones have 4 rotors although a few have 3. I would like to add one rotor to a zone that has 3 rotors on it.

    Can this be done and is it something that I, a homeowner, could do? I'm thinking I could just tap into the end of the line and dig a trench (would only need to be 6 ft or so) then add a rotor. Is it this simple or is their more to it or something I'm missing?
  2. EagleLandscape

    EagleLandscape LawnSite Platinum Member
    Male, from Garland, Texas
    Messages: 4,350

    Is is that simple, kind of. It all depends on your available pressure and gpm available. It would help to know what size valve, and what the static water pressure is. And what gpm nozzles you have currently.
  3. DavidR

    DavidR LawnSite Member
    Messages: 180

    Hmm...I can answer some of these questions. Would the valve size be the same size as the pipe that runs throughout the yard? It is 3/4" I believe. I can tell you that I use I-20's, that I know for sure. Haven't yet checked the static pressure...planned on doing that after I found out if this is something I could even do.

    I wasn't thinking it would be a problem since most of my zones run 4 rotors and this one only runs 3. Does this seem logical?
  4. hoskm01

    hoskm01 LawnSite Fanatic
    Messages: 5,690

    If all the zones were set up the same (valve size and lateral pipe size) and you have no significant elevation change or other factors effecting the flow of water, then you should have no problem adding one head to the light zone, assuming the other zone works ok.
  5. DanaMac

    DanaMac LawnSite Fanatic
    Messages: 13,209

    If you are unsure of the GPM, pressure, etc. of the system or zones, here is one possible way to try and see if there is enough water and pressure. Turn the zone on, and while the heads are spraying, try pushing down on them. If there is a lot of resistance, then more than likely you can add one. If it's real easy to push down, then no, don't add one.

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