Pump Lift: Installation and Use continued…
Section 3: Un-installing a Pump System
If the pump has been used recently, the column of water retained in the length of drop pipes will add 30 pounds to the total weight of the pump set for every 100 feet of drop pipe above the static water level. This figure will go down slowly over time (probably months), as the water gradually returns to the static water level.
Remove the pump head
To remove the pump head, first remove the lever arm mechanism.
Using the 3/16″ Allen wrench, remove each of the four fasteners that hold the lever arm mechanism to the pump head.
Move the lever arm clockwise while keeping the pump rod from rotating. The direction you unscrew is the opposite of normal — turn clockwise to remove, rather than the normal counterclockwise.
You will remove the whole assembly of lever link arm, bracket, and lever arm from the 3/4″ stainless rod.
Remove the pump head by unscrewing it (below) — rotating it in a counterclockwise motion. You may need to first loosen it with a channel lock.