How often should a borehole be serviced in Johannesburg?

As a rough guide, most borehole specialists recommend a full inspection and service every 12 to 24 months, depending on how heavily the system is used and the local geology. Systems that run daily as a primary water source need more frequent attention than those used occasionally for irrigation. Our article on what a borehole service includes sets out what should be covered at each visit.

Is sandy water from my borehole dangerous?

Sand and grit in the water are not immediately toxic, but they indicate a mechanical problem — a damaged screen or a pump positioned too low — that will worsen if ignored. The particles also damage pump impellers and household appliances over time. Have the borehole camera-inspected and the water tested against SANS 241 (2024 edition) before continuing regular use.

My borehole pressure has dropped — can I fix it myself?

Some causes of reduced pressure are straightforward, such as a deflated pressure vessel bladder, which a competent DIYer can recharge or replace. Others — a declining water table, worn pump impellers, or a blocked borehole screen — require specialist equipment and downhole inspection. Start by checking the pressure vessel and control panel for obvious faults; if nothing is evident, book a professional assessment rather than guessing.

What does it cost to service a borehole compared to replacing the pump?

A routine service visit is substantially cheaper than pump replacement. Borehole pumps typically cost R15,000–R35,000 installed — and that figure rises if the rising main or casing also needs attention. Regular servicing is primarily valuable because it catches wear before it causes a complete failure, keeping you in the lower-cost portion of that range rather than the higher end.

How do I know if my borehole water is safe to drink?

The only reliable way is to have it tested by a SANAS-accredited laboratory against SANS 241 (2024 edition), which is the South African drinking-water quality standard covering microbial, chemical, and aesthetic parameters. Visual clarity and taste are not reliable indicators — water can look and smell fine while containing harmful bacteria or elevated mineral levels. Testing is especially important after any change in water colour, smell, or taste.

7 Signs Your Borehole Needs Servicing Before It Fails

Your borehole can fail quietly. Unlike a burst pipe, which announces itself immediately, a deteriorating borehole gives weeks or months of subtle warnings before it stops producing water altogether. Knowing what those warnings look like — and which ones demand immediate action — can save you a costly emergency call-out or, worse, the expense of a complete redrill.

Below are seven signs that your system is telling you it needs attention.

1. Pressure or flow has dropped noticeably

This is the most common complaint and the one homeowners tend to dismiss for longest. If your shower pressure has slowly weakened, or the system takes noticeably longer to fill a tank than it used to, the cause is usually one of three things: the water table has dropped, the pump is wearing out, or the borehole screen is partially blocked with sediment or mineral scale.

A slow decline is different from a sudden drop — sudden drops more often point to pump failure or a broken rising main and need faster attention. Either way, reduced yield is the borehole’s clearest early distress signal.

2. Sputtering taps or air in the line

If your taps spit and gurgle before water comes through, air is entering the system. This typically means the water level in the borehole has fallen below the pump intake — either temporarily (during a dry spell) or permanently (the aquifer yield is declining). It can also indicate a cracked rising main drawing air in.

Running a pump that is sucking air rather than water causes rapid wear on the impellers and seals. If this is happening regularly, switch the pump off until a technician can assess the static and dynamic water levels. Continuing to run it risks burning the motor.

3. Sandy or gritty water

A small amount of fine sediment after a pump restart is not unusual. Persistent sand or grit in the water is a different matter. It usually means the borehole screen or filter is damaged or corroded, allowing formation material to enter the casing, or that the pump intake is positioned too close to the bottom.

Sand is abrasive. Left unaddressed, it grinds through pump impellers quickly and can block household filters and appliances. If you are consistently finding sediment in filter housings, arrange a camera inspection of the borehole before replacing the pump — you need to know what you are replacing it into. You can read more about these issues in our post on common borehole water problems.

4. Discoloured or foul-smelling water

Water that has turned brown, orange, or green, or that smells of rotten eggs or chemicals, points to a water-quality problem that needs both investigation and testing before the water is used.

Brown or orange water often indicates iron or manganese, or surface water infiltrating through a compromised casing seal.
Rotten-egg smell suggests hydrogen sulphide, commonly from anaerobic bacterial activity.
Chemical or fuel odour is a serious red flag for surface contamination reaching the aquifer.

All borehole water used for drinking or cooking should conform to SANS 241 (2024 edition), South Africa’s drinking-water quality standard. If your water has changed in colour, clarity, or taste, stop using it for consumption and have it tested by a SANAS-accredited laboratory before resuming.

Unsure which borehole specialist to trust for a proper inspection? Compare 3 free quotes — vetted installers, no obligation.

5. Electricity consumption has climbed

A pump that is working harder than it should pulls more current. If your electricity bill has increased and you cannot explain it elsewhere in the house, check whether the borehole pump is the culprit — either by monitoring its dedicated circuit breaker or by having an electrician measure its draw.

Higher current draw typically indicates worn bearings, partially blocked impellers, or a motor winding that is beginning to fail. Catching this early means a repair rather than a full replacement. Typical borehole pumps installed in Johannesburg run R15,000–R35,000, so there is a meaningful cost incentive to act before the motor burns out completely.

6. The pump is cycling on and off rapidly

If you can hear the pump switching on and off in short bursts — sometimes called short-cycling — the pressure vessel or bladder tank associated with the system has likely failed or lost its pre-charge pressure. Without that buffer, the pump starts and stops constantly trying to maintain system pressure, which dramatically shortens its service life.

This is a relatively straightforward fix when caught early. Ignored, it turns a R1,000–R2,000 pressure vessel problem into a pump replacement. As a rough guide, pressure vessels should be checked as part of any annual service.

7. It has been more than two years since the last service

This one is not a symptom — it is a ticking clock. Borehole systems have mechanical components (pump, motor, rising main, foot valve), electrical components (control panel, capacitors, cables), and downhole infrastructure (screen, casing joints, seals) that all degrade over time. Without periodic inspection, small faults accumulate unseen.

A proper service includes checking pump performance against its original yield data, inspecting electrical connections, testing water quality, and examining the casing for corrosion or infiltration. Our article on borehole servicing — what it includes explains exactly what a thorough service should cover. If you are not sure when your system was last looked at, that uncertainty is itself a reason to book an inspection.

For broader context on what a complete installation involves and what to expect from a system over its lifespan, see our borehole drilling guide.

If two or more of these signs apply to your system, it is worth getting a professional assessment now rather than after a failure. Get borehole service quotes from vetted Johannesburg specialists — free and no obligation.

Which signs mean switch it off now?

Most of the above warrant booking a service promptly — within days to a couple of weeks. Three situations, however, mean you should stop the pump immediately and not restart it until a technician has assessed the system:

Sputtering taps or air in the line happening regularly — pump is likely running dry.
Chemical or fuel smell in the water — possible aquifer contamination; a health risk.
Burning smell from the control panel or pump motor — electrical fault; fire and pump-destruction risk.

Everything else gives you a window to act — but that window closes faster than most homeowners expect. A borehole that is serviced on the early signs of trouble routinely outlasts one that is only attended to in a crisis.