Geotech 86600149, Installation And Operation Manual

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Section 7: System Troubleshooting
Pump discharges minimal or no fluid to the surface
Problem
Not enough air pressure is being supplied to the pump.
Solution
Ensure the air pressure is adequate for the pump depth. Minimum operating
pressure-depth ratio: 0.50 PSI/ft. is a good estimate to start with.
Problem
The bottom and/or upper fluid intake screen is blocked.
Solution
Clear the screen(s) of all debris.
Problem
The air, vent, and/or discharge hoses/tubing are kinked or blocked.
Solution
Clear the vent hose of all obstruction, replace if kinked.
Problem
The center pipe, float and valve have sediment buildup causing “sticky” high
friction spots.
Solution
Pull AR4 and perform a general maintenance cleaning.
Problem
The fluid density being pumped is too light.
Solution
Geotech’s AR4 is rated for fluid densities as low as 0.70 SpG. For pumping
fluid densities less than 0.70 SpG a custom float is required. Contact a
Geotech Technical sales representative for more information.
Problem
There is not enough fluid in well, or pump is not low enough to trigger the
minimum activation levels.
Solution
Use a water level meter to determine fluid depths in wells and reference
Section 2 AR4 System installation.
Problem
Interference or damage to seat is preventing proper seal at the inlet check
valves. Recovery fluid is exiting pump through inlets as opposed to
discharge line.
Solution
Inspect all c
heck valves for interference between the check “plug” and seat.
Replace or refinish check seats if necessary.
Air in discharge line during cycle