JoJo Tank Installation in Pretoria What You Need to Know Before You Buy
JoJo tank installation in Pretoria is no longer a luxury purchase. With Tshwane water shedding hitting suburbs across the city multiple times a year in 2026, a backup water system is becoming as standard as a generator. But a JoJo tank without the right pump, base, and plumbing connection is just a large plastic container sitting in your garden. This guide covers the five things every Pretoria homeowner needs to understand before spending a rand.
Why Pretoria Homeowners Are Installing JoJo Tanks in 2026
The City of Tshwane has acknowledged a projected water supply deficit that will persist beyond 2027. Planned and unplanned outages are now routine across suburbs including Pretoria North, Centurion, Pretoria East, and surrounding areas. A single outage can last anywhere from four hours to four days depending on the cause.
Beyond the inconvenience, water outages have a direct and expensive effect on geysers. When a Tshwane supply cut happens and your geyser element runs without water around it, element burnout follows. Most Pretoria homeowners who install a backup tank report zero water-shedding related callouts in the year after installation.
A correctly sized and installed backup system also prevents the geyser element burnout cycle we describe in detail in our guide on protecting your geyser during Tshwane water shedding. The tank maintains supply pressure to the geyser at all times, regardless of what the municipality is doing.
JoJo Tank Installation Pretoria: What Size Do You Actually Need
The most common mistake Pretoria homeowners make is buying a tank that is too small. A 1,000L tank sounds substantial until you realise an average household of four uses between 150 and 200 litres per day for essential use only. That gives you five days of supply at best.
| Tank Size | Best Suited For |
|---|---|
| 1,000L to 2,500L | Single person or couple, short outages, space-constrained properties |
| 2,500L to 5,000L | Family of 3–5, covers 10–16 days of essential supply |
| 5,000L to 10,000L | Large household, commercial property, or borehole systems |
| Two tanks linked | Extend capacity without full system replacement |
The 5,000L JoJo tank is the most common installation for Pretoria homes with a family of four. It covers 12 to 16 days of essential household supply during a Tshwane outage and fits a standard residential garden with adequate concrete base space.
The Five Things to Know Before You Buy
1. The base carries the full weight of the tank
A 5,000L JoJo tank full of water weighs approximately 5,100kg. That is over five tonnes sitting on whatever surface you place it on. A concrete slab is not optional. It needs to be correctly mixed, levelled, and cured before the tank is positioned. An unlevel base causes structural stress on the tank walls and can crack the outlet fittings over time. This is a leading cause of premature tank failure in Pretoria properties where installation was rushed.
2. A pump is not optional if you want water pressure
Without a pump, water flows from a JoJo tank by gravity only. That is fine for garden irrigation but completely inadequate for showers, toilet flushing, geysers, or washing machines. A pressure booster pump draws water from the tank and pressurises it to match what your household expects from the mains. The pump specification depends on your pipe run length, the number of outlets, and the head height from tank to highest point of use.
An incorrectly sized pump either fails under load or short-cycles, burning out the motor within months. Always confirm the pump specification before purchasing. We size the pump correctly as part of the site assessment.
3. The connection to your mains must include a non-return valve
A backup tank system connects directly to your property’s water supply line. Without a non-return valve between the tank and the municipal supply, tank water can backflow into the Tshwane network, which is both illegal under water by-laws and a contamination risk. A correctly installed system uses a float valve inside the tank to control fill level and a non-return valve on the mains feed to prevent backflow.
4. SANS 10252 compliance is required
A water backup tank installation that ties into the municipal supply line must comply with SANS 10252, the South African standard for water installations. This means the work must be carried out by a PIRB-registered plumber who can issue a Plumbing Compliance Certificate (COC) on completion. Without a COC, the installation is legally non-compliant and your insurer may reject any claim for water damage arising from a system failure.
5. Pipe run distance matters more than most homeowners expect
The further the tank sits from your house, the longer the pipe run and the more pressure drop between tank and tap. This affects pump sizing, pipe diameter selection, and the number of isolation valves needed. A site inspection before purchasing a pump eliminates expensive guesswork.
Get a Free Site Assessment Before You Buy
We assess your garden space, pipe run distances, pump sizing, and base requirements before you spend anything.
JoJo Tank Installation Costs in Pretoria in 2026
Costs vary based on tank size, pump specification, base preparation, and pipe run complexity. The ranges below are for complete supply and install packages including tank, concrete base, pump, all pipework, float valve, non-return valve, and COC.
- 2,500L complete system: R12,000 to R18,000
- 5,000L complete system: R18,000 to R28,000
- Pressure booster pump only (no tank): R3,500 to R7,500
- Rainwater harvesting installation: R8,000 to R18,000
Full pricing breakdown for water tank installation across all sizes in Pretoria is on our Pretoria plumbing prices page. All prices exclude VAT and are subject to a written quote after site assessment.
How Long Does a JoJo Tank Installation Take in Pretoria
A standard residential 5,000L JoJo tank installation in Pretoria typically takes one to two days. Day one covers base preparation and concrete pour. The concrete requires a minimum of 24 hours to cure before the tank can be positioned and loaded. Day two covers tank positioning, pump installation, pipework connections, float valve fitting, and system commissioning.
The COC is issued and emailed to you on the same day as system commissioning, provided all components pass inspection. If you need a tank installed before an upcoming outage, contact us with at least three working days notice so the base can cure correctly.
For Pretoria North properties with septic systems or borehole connections, installation scope may differ. Our Pretoria North plumbing team is familiar with the specific pipe layouts in Montana, Akasia, and Wonderboom and can quote accordingly.
Frequently Asked Questions
Can I install a JoJo tank myself in Pretoria?
You can position the tank yourself but the mains connection, pump installation, and compliance certificate must be done by a PIRB-registered plumber. An unregistered installation connecting to the municipal supply is non-compliant under SANS 10252 and will not be covered by your home insurer in the event of a leak or system failure.
Does a JoJo tank work during Eskom load shedding?
The tank stores water passively and does not need electricity. However, the pressure pump that distributes water to your house needs power to operate. If you want water during load shedding as well as during Tshwane water shedding, pair your backup system with a UPS or generator capable of running the pump motor.
How often does a JoJo tank need to be cleaned?
JoJo tanks used for municipal backup should be drained, inspected, and rinsed annually. Algae growth is inhibited by the black UV-stabilised inner lining, but sediment from municipal supply can accumulate at the base over time and affect pump efficiency. We include a maintenance guide with every installation.
Does the water in a JoJo tank stay safe for drinking?
Municipal water stored in a properly sealed and maintained JoJo tank is safe for general household use including cooking. For direct drinking, a point-of-use filter on the kitchen tap is recommended. The tank does not require additional treatment for non-potable household uses.
