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  1. #1
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    Need advice......

    Ok, the new system I put in works great! BTW, everything but the PVC fitting's was bought from Bob, upon his and other's recommendations.

    Here's my problem now. I can pump the well dry with 2 waterings of the yard, without any rain. So, it is obvious I need another source of replenishing the cistern/dug well. I can hear and see water "leaching" in from the sides, but it can't keep up. As a reminder, the existing well, is aprox 30 ft deep and 3ft in diameter. I don't know anything about well points. Hell, I don't know anything about wells, except for the work I did. Could I sink a well point to fill the existing hole in the ground that waters my yard, or do I need to have another well drilled? Obviously this would mean a float switch and another pump, but if I can only use the existing system 1 or 2 times a year, what's the point? In the summer month's when there is no rain, it appears to be pretyy much useless........ Keep in mind this is strictly for irrigation purposes and I have already spent a few $'s in repairs.

    Help please. Oh, if it helps,we are in the Celina Texas area.

    Thanks
    Bill

  2. #2
    Pump guy speedbump's Avatar
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    It seems to me that all dug wells are dug down through dry ground until water is hit. At this point, you are at the very top of the water vein. Usually made up of very clean sand/gravel. There is never much water to be had from the top of the vein. You have to get deeper to get any appreciably amount of water. So if all the above is true, (which I'm not swearing to mind you, cause I don't know your area) you should be able to drive a two inch well down into the sand several feet with a single or double screen and get more water that way. If this worked, you could simply leave the pipe sticking up a few feet above the top of sand so the water could fill the cistern faster than it used to.

    This is the only suggestion I have using what you have now. Maybe someone else has some ideas.

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  3. #3
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    Bob, are you saying just drive a point down, inside the existing well, and leave the top open? No pump? Not sure I understand how the water would rise up the pipe...

  4. #4
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    The pipe would have to be just a few feet above the sand bottom. The water level in the well now would be the same with the screens in the aquifer, so the pipe would have to be below that. It would be in reality a flowing well only down in the pit instead of above ground.
    The trick it getting the point driven down into the aquifer 5 to 20 feet and then having a pipe sticking up a few feet above the sand bottom. I don't imagine you would want to go down there. Working in a three foot diameter pipe could be a bit restrictive.

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  5. #5
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    You pretty much got that right.... About climbing down in the thing....

  6. #6
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    The only way I see you could do this is to put your screen/s attached to a 5' or so piece of 1-1/4" or 2" pipe tightly. Then screw however many feet you need above that to get out of the hole enough to drive the screens and the 5' piece of pipe down. All the joints above the five footer would be very tight but the long string where it attaches to the 5 footer is only hand tight plus. Then once the string has beat the screen and pipe into place, you could unscrew the top string and remove it.

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  7. #7
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    Kinda what I was just thinking..... But, you got me thinking.

    If you remember, Cary said the old pump was sitting 4" in muck, by looking at the pictures. Well, besides removing the check valve, I also cut another 6 - 8 inches of pipe, just to be sure the new pump wasn't sitting in muck. Could it be that I shortened the pipe too much? When I look down into the well, it appears that the water level is still above the pump and motor. It just doesn't pump anything.... no pressure. Can't really tell, but could the pump be cavitating because of the low water level? I know it's running, I can hear it. And if I wait a day or so, it will build pressure and run again..... just not for long...

  8. #8
    Pump guy speedbump's Avatar
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    If the pump stays in water, it keeps pumping. If it quits pumping, I hope you shut it off. If not, that may be the reason it's not pumping while in water now. They can't run more than about 20 minutes out of water without burning up in one way or another. Either the motor or the impellers will go.

    It could be that it drew down, quit pumping and before the water level could rise enough for it to regain it's prime, it nuked an impeller or two.

    Hope not!

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  9. #9
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    I don't think there is a problem with the pump.... I hope not anyway. And I did turn it off when I noticed it. Not sure how long it was running though..... But, if I let the water level rise, the pump will run and the pressure comes back up and when watering, holds at a nice 50psi. It's just that the water level drops...

    Maybe I should change to lower gpm heads..... at least in some of the zones. That would help some shouldn't it?

  10. #10
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    Yes, using less water in the same time will give you more watering time, but the same amount of water except for the refresh rate of the well.

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