I have a 6" well hole with an inside diameter of 5". My pump is 4" and may
be set below the bottom of the casing. I don't know how deep the casing
goes. The well is 115' deep and water level is about 45' down. With the low
producing well, about 3 - 4 gal per minute, I think I want the pump at 105'.
With this configuration I have read that I need a skirt, also called a flow
inducer shroud around the intake and motor to keep the motor cool. It is
just a 1/2 hp 220 v 2 wire pump motor.
I don't think there is enough room to put a big enough skirt down the 5"
hole. If the pump motor is under water, I would think it would be cool
enough anyway. Would this be correct?
Thanks for you comments,
To fill that pool twice in a month, you don't have a low producing well,
just a lower than some recovery rate. Low producing here is in the <=3
A 6" well is the ID of the casing, but you may have 5 5/8" casing. You
only need a "skirt" if there is a possibility, like filling a pool, is a
possibility. That's because the water will be coming from above the
pump, into the inlet of the 'pump' which is above the motor which is
hanging in stagnant water. Which will overheat the motor unless you have
one with thermal overload protection. A screened well you set the pump
above the screen or in the screened area and the water moves over the
motor getting into the inlet.
Yes keeping 10' or so off the bottom of a rock bore is a good idea due
to sediment buildup on the bottom of the hole.
Quality Water Associates
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