Water draining out of bottom head of zone

Discussion in 'Irrigation' started by weed wacker 2, Aug 22, 2013.

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  1. weed wacker 2

    weed wacker 2 LawnSite Member
    Posts: 208

    A customer has 10 sprays on a zone. The bottom head always seaps after it is turned off. I have already checked the valve and it is ok. I believe it is due to the size of the zone and the volume of water still in the line
     
  2. ArTurf

    ArTurf LawnSite Gold Member
    Male, from Ark
    Posts: 3,329

    This is prob low head drainage. Use heads with check valves. How much is the elevation drop from the highest to lowest head.

    Are you sure the valve is not seeping? Listen to it. Look at the water meter with everything turned off and see if the wheel is ssslowly turning.
     
  3. weed wacker 2

    weed wacker 2 LawnSite Member
    Posts: 208

    I can't a find a valve on the whole property. I did shut the meter off and the water drained out of the line within 15 min with the head off. Could I put SAMs on the lower heads or would I be better off putting heads with ck valves in them
     
  4. AI Inc

    AI Inc LawnSite Fanatic
    Posts: 25,153

    SAM = seal a matic = check valve
     
  5. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,603

    Depending on the elevation drop, I've had to replace heads all the way up the grade.
     
  6. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    Yo dad, you still got it. Just use checks in all your heads.
     
  7. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,836

    If it stopped when you turned off the meter and it's going on 24x7 when the meter is on, you have a weeping diaphragm. Find the valve and rebuild it, a SAM will just move the problem to the next lowest head.
     
  8. weed wacker 2

    weed wacker 2 LawnSite Member
    Posts: 208

    I turned the meter off and the water ran out of the bottom end for 15 min then stopped. If it stopped then its not the valve. I never found a valve on the entire property. They are covered with grass or mulch
     
  9. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,836

    If it stopped with the meter off and started again with the meter on, it is the valve. Every zone has to have its very own valve so if you can't find the valve, you need to call someone that knows what they're doing. I'm not trying to be ugly, I'm just being honest.

    Or you can ignore me, install a SAM and come back next week to ask why the next lowest head is draining now, your choice.
     
  10. TX Easymoney

    TX Easymoney LawnSite Platinum Member
    Posts: 4,063

    Get a screwdriver and start fishing for the valve in the area where the valve is located...after about an hour call someone who has a locator....much easier trust us
     
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