What will the tank supply?
Water Tank Installation South Africa is what makes a modest borehole behave like a strong one. The hole fills the tank slowly all day and a pressure pump delivers it quickly when you need it. Say how much storage you want and where it goes, and compare quotes on the tank, the base and the pump.
- Know what a tank, a stand and a pressure pump should cost, so you never pay too much.
- Say how much storage you want and where it goes, and quotes come back fast.
- From LEADERR APPROVED providers, vetted and backed by many verified 5-star reviews. Peace of mind that the base is built for the weight of a full tank.
Say how much storage you want and where it goes, and get tank quotes.
Get the Best QuoteWater Tank Installation Prices
Ballpark figures so you can check a quotation.
| Item | Ballpark price |
|---|---|
| 2,500 litre tank, supplied | R2,200 - R4,500 |
| 5,000 litre tank, supplied | R3,800 - R8,500 |
| 10,000 litre tank, supplied | R8,500 - R18,000 |
| Concrete plinth, cast on site | R2,500 - R9,500 |
| Steel tank stand, 2m to 3m | R6,500 - R28,000 |
| 5,000 litre tank and stand, installed | R9,500 - R22,000 |
| Pressure pump and vessel, installed | R6,500 - R18,000 |
| Float valve and overflow plumbing | R850 - R3,500 |
| Municipal backup inlet with backflow prevention | R2,500 - R9,500 |
Prices JUST UPDATED. Ballpark figures, rounded, excluding VAT. They reflect typical South African borehole drilling, pump and water treatment rates. They are not our prices or quotations, and no provider is bound by them. Drilling is quoted PER METRE and the depth is not known until the hole is down, so confirm what each quotation includes, such as mobilisation, casing, development and what you pay if no water is found.
Sizing the Storage
- Start from daily demand. A household of four uses a great deal more than most people estimate.
- Match it to the yield. A weak hole needs more storage, not a bigger pump. This is the whole point.
- One day minimum. Two if the hole is weak, the power is unreliable or the property is remote.
- Irrigation needs its own. A garden drawing in one burst needs volume, not pressure.
- Several smaller tanks. Easier to deliver, to site and to service than one large one.
- Allow for the future. Adding a second tank later is easy. Rebuilding a plinth is not.
The Base, and Why It Decides the Job
- Water is heavy. Five thousand litres is five tonnes, and it is the base that carries it.
- A level plinth. Concrete or compacted paving, flat, with the whole tank floor supported.
- No point loads. A tank on uneven ground deforms and splits at the seam.
- Stands for gravity feed. A steel stand gives head without a pump, and needs engineering above a certain height.
- Keep it out of the sun if you can. Sunlight and heat shorten the life of a tank and grow algae in it.
- Access for a vehicle. Delivery of a large tank needs room, and so does replacing it one day.
Getting Water Into and Out of It
- A float valve or switch. Stops the borehole pump when the tank is full instead of letting it run.
- An overflow. Piped away from the base, not onto it. A washed out plinth cracks.
- A pressure pump. With a vessel, to give the house proper pressure from a gravity tank.
- A low level cutout. Protects the pressure pump from running dry when the tank empties.
- Municipal backup. A second inlet with correct backflow prevention, so nothing returns to the mains.
- A drain and an inspection hatch. Tanks collect sediment and need cleaning out every few years.
Get a price for your own property rather than a range.
Get the Best QuoteWhat Affects the Price
- How much storage. Tank price climbs steeply above ten thousand litres.
- Plinth or stand. A cast plinth is cheap. An engineered stand is not.
- How far from the house. Pipe, trenching and cable for the pressure pump.
- Whether a pressure pump is needed. A gravity fed tank high enough may not need one.
- Access for delivery. A ten thousand litre tank that will not fit through the gate changes the plan.
- Municipal backup. An extra inlet, a float and the required backflow prevention.
- Site work. Levelling, retaining and drainage around the base.
What to Include in Your Request
- How much storage you want. Or how many people and what garden, and let the installer size it.
- What fills it. Borehole, municipal, rainwater or more than one.
- Where it should go. And whether there is level ground and vehicle access.
- What it must supply. The house, the garden, livestock or a business.
- Whether you want gravity feed. A stand instead of a pressure pump, if the height works.
- The address. Suburb and town, so delivery and travel can be priced.
Before You Appoint an Installer
- Ask what the base is. And that it carries a full tank. This is the failure that writes off the tank.
- Ask about the overflow route. Away from the base, piped, not just a hole in the side.
- Ask for a float on the borehole feed. Letting a borehole pump run into an overflowing tank wastes the hole.
- Ask about low level protection. For the pressure pump, when the tank runs out.
- Check the backflow prevention. If municipal water also feeds the tank, this is not optional.
- Ask about cleaning access. A hatch and a drain, so it can be emptied and washed out later.
Water Tank Installation FAQs
What size water tank do I need?
Enough for at least a day of demand, and more where the borehole is weak or the power is unreliable. A household of four typically wants five thousand litres as a minimum, and a property with irrigation wants considerably more. Matching storage to the hole's yield is what lets a modest borehole serve a busy house.
How much does a water tank installation cost?
A five thousand litre tank is roughly R3,800 to R8,500 supplied, and R9,500 to R22,000 installed on a stand with the plumbing. A cast concrete plinth is R2,500 to R9,500 and a pressure pump with a vessel R6,500 to R18,000. Ten thousand litres and above climbs steeply.
Does the tank need a concrete base?
It needs a level base that supports the entire floor of the tank, and concrete or properly compacted paving is the usual way to get one. Five thousand litres weighs five tonnes. A tank on uneven ground or on a few bricks deforms and splits at the seam, and no tank warranty survives that.
Do I need a pressure pump as well?
Unless the tank is high enough to feed the house by gravity, yes. A tank on the ground gives very little pressure at a shower. A pressure pump with a vessel and a low level cutout is the normal arrangement, and it is a separate item on the quote.
Can one tank hold both borehole and municipal water?
Yes, and it is a common setup, but it has to be plumbed with proper backflow prevention so borehole water can never flow back into the municipal mains. Your municipality may have a specific requirement for how that is done, so it is worth asking the installer what they fit and why.
How often should a tank be cleaned?
Every two to three years for a tank on borehole water, and sooner if the water carries sediment or iron. Silt settles out and builds up in the bottom, and that is where bacteria sit. An inspection hatch and a drain fitting at installation makes the job straightforward instead of a day's work.
Storage is quoted alongside almost every pump job on Borehole Drillers South Africa because it is what makes a weak hole workable.
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