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30
Pump Tube
NOTICE:
A leaking pump tube damages the metering pump. Inspect pump frequently for leakage
and wear. Refer to Tube Replacement section for additional safety precautions and instructions.
Tube is leaking.
Pump tube has ruptured.
Replace pump tube at routine intervals.
Calcium or mineral deposit.
Clean injection fitting, replace pump tube.
Excessive back pressure.
Check tube psi rating against system pressure;
replace accordingly.
Tube is twisted.
Replace tube according to instructions.
Tube is not centered.
Replace tube and center it.
Tube life is shortened.
Chemical attack.
Check chemical compatibility.
Mineral deposit at injection point.
Remove deposit and replace pump tube.
Sediment blockage at check valve.
Maintain suction line 2 – 3" above bottom of tank.
Use a suction line strainer.
Degraded check valve duckbill.
Replace check valve duckbill at every tube change.
Duckbill in wrong orientation.
Reverse duckbill orientation.
Tube was manually stretched to lock
See tube replacement instructions. Allow roller
into discharge side slot.
assembly to stretch tube into place.
Seized rollers caused abrasion on tube.
Clean roller assembly or replace.
PROBLEM POSSIBLE CAUSE SOLUTION
Troubleshooting
continued
– pump tube
