Tag Archives: pump shaft

Submersible Bore Pump Shaft Broken

We had an unusual service call yesterday  (9246 0111) about a submersible bore pump that was producing only about 25% of the water that it normally delivered.

submersible pump shaft
Pump and motor uncoupled showing shaft.

We ruled out all the normal things like a hole in the poly rising main, pump wasn’t running backwards, none of the “normal” causes.???  When we winched the submersible pump to the surface we found the shaft joining the motor to the “wet-end” (pump) seemed OK but on uncoupling the submersible pump we noted inconsistencies. Found the shaft had sheared actually inside the pump leaving the first 4 of 12 impellers still turning. Quite an uncommon fault.

submersible pump
Submersible pump shaft snapped

Further detective work found the unusual auto start device had been turning the pump on/off, on/off incessantly contributing to the failure. Replaced the pump and installed it all back down the borehole with the original motor. Tested and all good now!

We have been in the water boring business for nearly 20 years and know how to repair and service water bores in Perth. We are a family business and will look after you.

Call us anytime on  9246  0111 or Troy on mobile 0408 454 130. Our mobile bore service teams visit all Perth suburbs.

There is more information on water bores in Perth HERE