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Fixing Blown Poly in Submersible Water Bore

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Blown poly
Blown poly

A common call to our Perth Water Bore repair line 1300 734 300 starts with the plea “my bore has stopped pumping water”.

In a submersible water bore (as opposed to a centrifugal pump in the old well style bore) 40mm flexible black poly pipe is often used to deliver the groundwater to the surface. The submersible pump is inside the 100mm bore-casing, under water near the bottom of the borehole.

If the pump is dead-headed (allowed to operate with nowhere for the water to flow to, such as when solenoid valves in reticulation systems fail to open) the pump motor will overheat. this causes the 40mm poly pipe to overheat and can quite commonly blow a hole in the side of the pipe just above the pump yet still under water. Hey presto no water to the surface but pump still runs. This picture is what the poly pipe looks like after winching to the surface for repair.

If you have a problem with a submersible pump that appears to still be running but no water is coming to the surface then a  blown poly pipe could be the cause. Contact our team Perth metro wide and we will help. 1300 734 300 or visit our main website here.

Air develop water bore Perth, Bore Repairs & Service, Family owned business

Bore Air-Development?

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We often get asked what it means to air develop a bore.  It is an important part of drilling a water bore in Perth suburbs.  Talk to us about it on 9246 0111.

Water bore Air-development.
Water gushes out of a new bore as compressed air is pumped down the borehole.

Ordinarily with a correctly constructed new water bore it is air-developed following drilling but before the installation of the submersible pump. This is particularly important in Perth’s typically sandy soils.

bore development
Water bore air development (credit : Lockyer Water)

Air development is a process where compressed air is pumped down the borehole both flushing out the drilling muds used to drill the bore and developing water flow from the aquifer. The accompanying diagram illustrates the results of development on a bore with a stainless steel screen. The principal is the same and equally important for those water bores constructed with slotted PVC screen. Slotted PVC screen is more common in Perth water bores.

Air-development is also used to clean out old and tired bores that have diminished water flows. It helps clear out years of silt etc and once again develops flow from the aquifer.

If your bore has reduced water flow call us for the solution on 9246 0111. Our mobile service teams operate Perth metro-wide. Also there is more information on air developing a water bore HERE

Bore Repairs & Service, Bores & Pumps, Family owned business

Submersible Bore Pump Shaft Broken

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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

Bore broken, Bore repair

Perth Bore Service and Maintenance Cranks Up

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deep submesible pump repair Perth
Pulling up a deep submersible pump for repair.

Most bores work seamlessly for many years with no problems  start but there are sometimes some with problems. Common Perth bore faults include,

  • Old wells that have lost prime.
  • Submersible pumps that won’t start.
  • Bore circuit breakers that trip or fuses that are blown.
  • Reticulation controllers that are not working.
  • Blown bore pump start capacitors.
  • Electrical faults.
  • Pump motor fusion (often covered by insurance).

Whatever your bore problem no doubt we have seen it before as we have been in the business for nearly 20 years and are very experienced in bore repair in Perth.

Water Bores & Reticulation all suburbs Perth
Reticulation & Repairs Perth 9246 0111

Phone us for free telephone advice on 9246 0111   or to book a bore service visit. Read further at our Bore Troubleshooting Guide or visit our main website here.