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  1. #1
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    Save a well or start over


    My brother and I are neighbors, we are on a shared well on the property of some low-lifes across the street and we’d like to have our own well despite thefact that we have legal access to the community well.
    So we paid for a 100’ well and when it came time to lowerthe pump, (which we did ourselves), it stopped at the 70’ mark.
    We had what we thought was decent water but not quite asmuch as we had hoped for so we complained about the lack of depth so thedrillers came back and dug another 30’ without charge.
    Now the water we have is way too brackish, it will killgrass and other vegetation.
    It’s a six inch well casing, is it at all feasible to plugthe bottom 30’ and go back to drawing water from the 70’ mark?? Or should westart from scratch?

  2. #2
    Pump guy speedbump's Avatar
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    You could tremie cement down to the bottom. Neat cement is what we always used to plug wells. You can mix it up soupy so you can pump it down a 1" or larger pipe. Set the pipe on the bottom and let the cement come up around it. Do some math so you know how much to pump down, then pull the pipe back and let it set up. Cement sets up under water. You can rent a trash pump to do the job. Two horse is plenty.

  3. #3
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    Quote Originally Posted by speedbump View Post
    You could tremie cement down to the bottom. Neat cement is what we always used to plug wells. You can mix it up soupy so you can pump it down a 1" or larger pipe. Set the pipe on the bottom and let the cement come up around it. Do some math so you know how much to pump down, then pull the pipe back and let it set up. Cement sets up under water. You can rent a trash pump to do the job. Two horse is plenty.
    But then, how do we cut holes at the 70' level to allow the water into the casing?

  4. #4
    Pump guy speedbump's Avatar
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    Do you know what kind of well you have? A rock well or a screened well? I was assuming a rock well since they came back and just went deeper. If it is a rock well, they would have put in some casing. Maybe 40 or 60 feet. So the water was coming in somewhere between the bottom of the casing and 70 feet. So if you just fill the bottom part of the hole in so the well is again 70 feet, no problem.

  5. #5
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    Quote Originally Posted by speedbump View Post
    Do you know what kind of well you have? A rock well or a screened well? I was assuming a rock well since they came back and just went deeper. If it is a rock well, they would have put in some casing. Maybe 40 or 60 feet. So the water was coming in somewhere between the bottom of the casing and 70 feet. So if you just fill the bottom part of the hole in so the well is again 70 feet, no problem.
    OH.....Now I think I understand, I assumed the casing went all the way to the bottom but you're suggesting that may not be the case. Alright, now I need to check with the driller and find out how much casing has been installed in the well. Thanks speedbump, that gives me something to work with.

  6. #6
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    I'm figuring about 23 cubic feet of material to bring the bottom of the well back up to the 70 foot level. Is it possible to use plain sand literally dumped down the casing, (with the pump out of the way), instead of concrete/cement and allow the pump to suspend about 10 feet above the sand fill?

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