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  1. #1
    Join Date
    May 2011
    Posts
    6

    Default Underground Sprinkler Help

    I draw my water from a pond that leads up to my house about a 25-30 foot incline from the pond to the house. the system has worked great, but this year when i started up the system black muddy water came out of the sprinklers and i dont seem to have as much pressure, i have no clue what the problem is. Also should i be using gear driven or impact sprinklers? Any help would be greatly appreciated!!

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Underground Sprinkler Help

    With the few details you provide, it's not easy to guess.
    If you have a pvc pipe leading to the house, you may have a crack in it. That would explain the low pressure and the muddy water.

  3. #3
    Join Date
    May 2011
    Posts
    6

    Default Re: Underground Sprinkler Help

    Hi dj1 - i let the system run in all 3 zones for an entire cycle, the muddy water eventually turned clear, however the pressure is still an issue. I get a good stream of water but not enough to force the impact sprinkler to return. do you thing the intake screen in the pond could be clogged?

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Underground Sprinkler Help

    Benedict, that's a possibility. Take it apart and clean, if necessay. Then see if the pressure is good.
    if not, remove the first sprinkler head, turn the water on and see if the water comes out with good pressure. If not, your problem may be in your pipe.

  5. #5
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: Underground Sprinkler Help

    Time to flush all the lines with clear water. Take the filters out of the heads and valves.

  6. #6
    Join Date
    May 2011
    Posts
    6

    Default Re: Underground Sprinkler Help

    ok, i discovered that my filter basket was missing at the end of my irrigation line leading into the pond, that is why i was sucking up mud. I have fixed this, then i removed the guts of thr first sprinkler in each zone to flush any junk out. i then replaced the guts and ran the system and all was good, the next morning they came on and again the pressure was weak again, i then went down and drained and reprimed the pump, it worked perfectly, but then the next morning the pressure was weak again. i have replaced the check point cleaned the pump from any debris, do i need a new pump???? thanks in advance!!!!!!

  7. #7
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Underground Sprinkler Help

    OK, good job.

    You said that every time you clean the system it works fine right away, but doesn't work fine the next morning. I would flush it two more times. If the pressure is still weak, then it could be the pump. Clean it or replace it.

  8. #8
    Join Date
    May 2011
    Posts
    6

    Default Re: Underground Sprinkler Help

    Hi dj1

    yes, every time i flush and reprime and run the system it works great, the next morning the pressure is weak. i will fush a few more times.

    thanks for your help!!

  9. #9
    Join Date
    May 2011
    Posts
    6

    Default Re: Underground Sprinkler Help

    ok, heres the latest. I spoke to my local ace hardware guy and explained everything to him.
    1. installed new basket filter and check valve
    2. pulled the guts on the first sprinkler in each zone and flushed
    3. cleaned the motor
    4. explained that everytime i drain an reprime the system works great, great pressure in every zone, every zone turns on and off properly but the next morning its lacking pressure but the pump didnt lose prime.

    he doesnt think its the pump since after i drain and reprime the entire system (all 3 zone) work great, doesnt think it the valves because all 3 work great after i drain and reprime, doesnt think i have a leak in one of my lines buecause after i drain and reprime it works get, but he doesnt have an answer for me.

    could i be missing something??

  10. #10
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Underground Sprinkler Help

    My first reply was about the possibility of having a crack in the line, where mud can get into the line.
    If you eliminate all other possibilities, then you have to find out if you have a crack or not. If you do, find the location and do the repair.
    To find the location, run the system and when the pressure is low, look for evidence of a leak - puddles, soft dirt, mud, etc.
    If you can't see anything unusual, I would expose the entire length of the pipe and look for a leak. When digging, be careful not to hit the pipe...
    Good luck.

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