Signs Borehole Pump Dying How To Save It
5 Signs Your Borehole Pump is Dying (And How to Save It)
A borehole pump is the heart of your water system. It works silently, day and night, pushing water from deep underground into your pressure tank and through your pipes. But like any mechanical workhorse, it doesn't last forever. The average submersible pump in Gauteng lasts between 8 to 12 years—if it is maintained. Ignoring the warning signs can turn a simple repair into a complete system replacement.
1. The Pump Runs Constantly (Never Shuts Off)
Listen to your system. A healthy pump should kick on when you use water, fill the tank, and then shut off. If you hear the pump running all the time—even when no taps are open—something is wrong. This is often a sign of a pressure tank problem (like a waterlogged tank) or a leak in the system. The pump is trying to build pressure, but the water is going somewhere else. Constant running burns out the motor fast.
2. The "Rapid Cycling" Clicking Sound
Does your pump turn on and off in quick bursts when you flush the toilet or run the tap? That rapid clicking is called "short cycling." It means your pressure switch is triggering constantly. This is usually caused by a loss of air in the pressure tank. Without that air cushion, the pump reacts to every tiny drop of water used. This constant starting and stopping generates massive heat and friction, which destroys the pump motor and contacts.
3. Murky or Sandy Water Appears
If your water suddenly turns gritty or muddy, your pump might be pulling up sediment from the bottom of the borehole. This can happen if the pump was set too low initially, or if the borehole screen has failed. It can also mean the pump itself is deteriorating internally. The impellers might be wearing down, or the motor shaft might be corroding, sending metallic particles into your water.
4. Higher Electricity Bills (For No Reason)
An aging or struggling pump loses efficiency. It has to work harder and run longer to move the same amount of water. If your electricity bill has crept up but your usage hasn't changed, your pump might be the culprit. A failing motor draws more amperage, which costs you money every single day until it is fixed or replaced.
5. The Breaker Keeps Tripping
This is a serious electrical warning. If the circuit breaker for your borehole trips repeatedly, the pump motor is likely pulling too much current. This can be caused by:
- A failing motor bearing (seizing up).
- Water inside the electrical connection (a short circuit).
- A damaged cable underground.
How to Extend the Life of Your Pump
You don't need to wait for total failure. Preventative maintenance is cheap compared to emergency replacement.
Annual Pressure Tank Check
Check the air pressure in your pressure tank (using a car tyre gauge) every year. It should be about 2 PSI lower than the pump cut-in pressure. This simple check prevents short cycling and extends pump life dramatically.
Listen and Observe
Spend five minutes in your pump house or near your borehole cover every month. Listen for unusual sounds (grinding, screeching) and look for leaks or rust. Catching a small drip early can save the motor from flooding.
Water Testing
Aggressive water (high acidity or low pH) can corrode metal pump components. Testing your water quality every two years ensures your water chemistry isn't slowly eating your pump alive from the inside.
Don't Wait for the Silence
The scariest sound is no sound at all. When a pump fails completely, you have zero water until a replacement is sourced and installed. For businesses, this can mean shutting down operations. For homeowners, it means buying bottled water for everything.
If you are in Johannesburg, Pretoria, or anywhere in Gauteng and have noticed any of these signs, a professional assessment can diagnose the issue before the pump dies completely. A simple repair today beats a full system replacement tomorrow.