Turbine Pitless - Installation Instructions


  1. All pitless unit cases are joined by welding or threading the unit to the well casing, or kwikonect style by slipping the unit onto the top of the well casing and tightening the bolts.
  2. Establish ground level at the well location. It is desirable to have the ground slope away, from pitless unit case, in all directions.
  3. The pitless unit case should extend above the ground level according to state well code. To accomplish this the well casing must be cut off at a distance below the ground level equal to the overall pitless unit length less the length unit is to be above the ground.
  4. In order to do work, excavate around the well casing according to government regulations where well casing is to be cut off.
  5. Cut off the well casing PERPENDICULAR to the well casing center line.
  6. Remove the pitless unit cap then loosen the hold-down hooks or spider and remove spool assembly and set aside. NOTE: (the spool assembly includes a spool with two or no silent check valves; two o-ring seals, lift-out pipe and bail, or hold down spider.
  7. Lower the pitless case into place and rotate the discharge outlet to the desired location and weld the pitless case to the well casing. THIS JOINT MUST BE WATERTIGHT AND IT IS ESSENTIAL THAT THE CENTER LINE OF THE PITLESS CASE AND WELL CASING BE THE SAME.
  8. Attach the turbine pumps to the column pipe and lower into well making drive shaft etc., connections while lowering. When the last section of column pipe, shaft etc., is one foot or more above the pitless case, lower the spool assembly over the shaft and screw onto the column pipe.
  9. Wipe the rubber o-ring seals with a clean cloth and then coat with a heavy layer of petroleum jelly (vaseline) for proper seating of rings. Lower the spool assembly into place.
  10. Install motor support stand and upper shaft seal.
  11. Connect discharge outlet to distribution line and complete all wiring.
  12. Mount turbine motor onto motor support plate making all necessary shaft assemblies
  13. After all wiring has been completed the unit is ready to operate under power and should be run a sufficiently long time to see that there are no leaks present.
  14. The hole should not be filled in until the unit is running satisfactorily. Care should be exercised to fill under the discharge line properly before back filling.

NOTE:Dissimilar metals should be avoided.