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Iron Bacteria problem in well

Discussion in 'Irrigation' started by mx315, Jun 25, 2013.

  1. mx315

    mx315 LawnSite Senior Member
    Messages: 394

    Just took a property over and running through the irrigation system to fix problems. Manager tells me they have always had a problem with iron in the water and clogged heads. The outlet side had 9 two inch 90's in a five foot section right off the pump. Cut it all apart to replace all the 90's and found this.

  2. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 27,009

    I see the iron but where is the bacteria? Maybe different there but around here iron bacteria looks like snot.
  3. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,158

    Have never seen anything that drastic. I'd say it's low flow, bad piping (too many 90s) and overzoned. Most heads and valves will pass that crap if the pressure is up. What is your operating pressure?
  4. 1idejim

    1idejim LawnSite Fanatic
    Messages: 11,318

    I guess they forgot the 5 diameter rule?
    Posted via Mobile Device
  5. mx315

    mx315 LawnSite Senior Member
    Messages: 394

    My pressure is running at 70 psi now that we cleaned the well screens. I've had plenty of iron, but never had a system with iron bacteria. I thought it was strange that there were no stains on anything or smell, so I had it tested and they told me it was bacteria. I just started working on this system 2 months ago and the manager told me they have always had problems with the irrigation. I started digging around the pump area and they have 4 well casing pipes in a 10' radius. I guess they couldn't figure out what it was so they kept putting in new wells in the same spot.
  6. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 27,009

    Ive seen a few points tied together. Usually done when one dosnt produce enough.
  7. mx315

    mx315 LawnSite Senior Member
    Messages: 394

    There are two 2" wells tied together now. That's what is pulling up this mess. I found a 3" and 4" within a couple of feet of these other wells. They abandoned those because of the same problem, but still drilled new wells in the same spot.... kind of dumb I thought.
    After researching the iron bacteria problem, it looks like there is nothing that can be done to remove the buildup inside the mainline pipe, without killing all the grass and plants.
  8. AI Inc

    AI Inc LawnSite Fanatic
    Messages: 27,009

    Why is a filter out of the question?
  9. mx315

    mx315 LawnSite Senior Member
    Messages: 394

    Installed a Vu-Flow right after the pump a few weeks ago, but everything that's built up in the lines already is the problem. Some of the larger zones are weak and the new pump is doing all it can. The restriction in the main line is the problem.
  10. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Messages: 6,194

    Hey brother!

    care to talk about this rule or any other rules more when doing pvc.

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