Whats the best pump to bring drinking water from a depth of 20'

If less than 25’, use a shallow well jet pump

Explanation:

A typical well water system lifts water from an underground well and delivers it to a storage tank where it’s pressurized and stored until it’s needed. Most pumps are electric and use suction to draw the water through pipes.

A motorized jet pump assembly includes the pump that moves the water from the wall and a motor to dive the pump. It’s often paired with a pressure tank, which evens out the water throughout the home.

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