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The Shallow Well Pitcher Pump is used only in shallow
well applications. The water level in the well is what determines
the difference between "deep" and "shallow"
wells.
If your well is 400 feet deep but the static* water level
below ground is less than 25 feet, you have a shallow well.
However if you have a 40 foot well and the static* water level
is 30 foot from ground level, you have a deep well. The Pitcher
Pump will only work on the shallow well.
The laws of physics and gravity are the reason that pumps
are separated into two categories, shallow well and deep
well. You can only pull a vacuum to lift water from a
depth of 32 feet at sea level, measured from the pump to the
top of the water. However this is only true in a perfect world.
Here in the real world, we call the theoretical 32 feet 25
actual feet. These pumps will lift the water 25 feet
with quite a bit of resistance. Pitcher Pumps are great for
shallow wells with a water level of less than 20 feet from
the bottom of the pump (That is where the water is actually
being pulled from). Don't hook a Pitcher Pump to a well that
has a static water level of 20 feet and raise the pump up
to sink level in a cabin, which is 5 feet higher than the
ground level. It won't work!
*Static Water Level = Top of the water column standing in
a well measured from ground level.
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Helpful Information
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