Municipal backup
JoJo Tanks Municipal Backup Solution consists of a tank that is tied to the main water supply line and fills automatically when mains water is available. This water can then be used in the event of a water cut, providing you with an uninterrupted, pressured water feed that is clean and safe for household use and consumption.
Municipal Backup Benefits
- Uninterrupted water supply
- Pressured water feed
- Water fit for consumption
- No additional filtering required
- Reduces reliance on regulated water
System Components
1. Tank
2. Base / Plinth
3. Pump
4. Pipes
Assumed ¾ inch galvanised pipes
4a. 25mm diameter (minimum) from tank to gate valve, to pump.
4b. 20mm diameter (minimum) from pump to house, to tie into mains.
4c. Supply tank with municipal feed to float valve at the top of the tank.
5. Elbows
Sizes vary according to pipes (quantity will vary based on the setup).
6. Gate Valves
To isolate components and manage the system.
7. Non-return Valves
To ensure no back pressure to the main supply.
8. Float Valve
To control the fill height of the tank (pay careful attention to the height for best results and to ensure that the tank is level).
Note
This is an example of a basic Municipal Backup System. Each installation will vary based on the setup and your personal preferences. It is advised to make use of a plumber/professional installer as the system is required to tie into the building’s main water supply line.
Maintenance
Here are two tips to prolong your system’s life, reduce the potential for damages and ensure you enjoy maximum benefits:
1. Keep your tank clean
Inspect the inside of the tank every 3 months to make sure that everything is in order. If it is not clean, identify the cause of the problem - your lid might be loose or an overflow pipe might not be covered correctly.
2. Rotate the water
Under ideal circumstances, municipal water can be stored inside a JoJo tank for extended periods of time due to the fact that it is chlorinated. To keep your water fresh, however, it is recommended to rotate the water every two weeks.
Tip: Draw up a roster for your tank and rotate/circulate the water at set intervals by using it to wash your car, fill up the pool, water the garden etc. This will get the water level down inside your tank, after which you can fill it up with fresh municipal water.
Intallation guide
1. Pre installation
A. Choose a tank
How to calculate which size tank you require for municipal backup:
Size of tank = litres p/day x total days backup required.
i.e. 4 x people (600 litres) x 3 days = 1800 litres
| PEOPLE | LITRES P/DAY |
|---|---|
| 1 | 150 |
| 2 | 300 |
| 3 | 450 |
| 4 | 600 |
| 5 | 750 |
B. Tank placement
The tank should be placed where municipal supply can be intercepted before entering the house.
C. Base/foundation
Tank must be installed on a sound, level and smooth surface. Level paving will suffice, or a properly designed tank stand. Alternatively, a plinth needs to be built, ideally with a concrete surface bed at least 85mm thick.
D. Recommended base sizes
It is recommended that the foundation should be at least 100mm wider than diameter of tank.
| TANK | DIAMETER | BASE |
|---|---|---|
| 750lt Slimline | 760mm | 860mm |
| 1000lt Slimline | 840mm | 940mm |
| 1500lt | 1410mm | 1510mm |
| 2200lt | 1420mm | 1520mm |
| 2500lt | 1420mm | 1520mm |
| 5000lt | 1820mm | 1920mm |
| 10 000lt | 2200mm | 2300mm |
2. Installation
1. Base/concrete plinth
Ensure that the tank is installed on a suitable base. The base must be sound, level, smooth, free of any protrusions and at least 100mm wider than the base of the tank (refer to pre-installation).
2. Plumbing – tank to pump
Use a pipe of minimum 25mm in diameter from the tank, to the gate valve, to the pump. Connect the pump to the electrical main supply.
3. Plumbing – pump to house
a. Use a pipe of minimum 20mm in diameter from the pump to cut into the mains (where possible), before PRV-valve.
b. Install a non-return valve (between house and mains) to ensure no back pressure to mains.
4. Supply tank with water
Supply the tank with municipal feed to float the valve at the top of the tank. When full, the float valve will close the water supply and when it drops, it will open and allow the tank to be filled.
5. Fill the tank
Ensure that the gate valve is open and fill the tank using municipal supply.
6. Recommendation
It is recommended that the water is run once every two weeks in order to rotate the water and ensure that the system functions properly.
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Why JoJo?
Tank Benefits
When you purchase a JoJo tank, you invest in a high-quality product from South Africa’s leading manufacturer of polyethylene tank solutions.
Our products offer the following benefits:
- All JoJo polyethylene products come with a 10-year guarantee (extended from an 8-year guarantee as of 1 September 2017).
- Tanks are available in different formats, with a variety of fittings and accessories to extend performance capabilities and versatility.
- Products are manufactured with the best food-grade, quality virgin LLDPE.
- With a UV-stabilised outer layer, our products are designed to withstand the harsh African climate.
- The food-grade, black inner lining in our water tanks prevents algae growth and keeps water fresher for longer.
- A stringent quality-control system ensures that products meet specified design standards.
- All JoJo Water and Chemical Tanks are manufactured in accordance with the specifications outlined in SANS 1731:2017*
- All Vertical, Horizontal and Septic Tanks carry a quality certification from the Agrément Board of South Africa.
Find more information on our compliance to Industry Tank Standards here.
Testimonials
Wow, JoJo Tanks you rock! I just spoke to the most friendly, polite, knowledgeable and most helpful customer service lady at your call centre called Lesedi, and she provided all the information I needed about your JoJo Tanks and where to find them. Thank you guys!
On behalf of Rainbow Warriors SA, The Bonecrusher Crew and The Stray Cat Gang, we would like to thank JoJo Tanks for their life-saving donation of a 5000lt water tank to the Rainbow Warriors animal shelter in Hibberdene, Kwazulu-Natal.
For the past five years the Lower South Coast has had severe water problems. This year we were hardest hit and had to endure 16 straight days without a drop of water. As a shelter this becomes a major crisis, as water is like gold to us. Our dogs and cats drink between 80 and 100lt per day, our kennels are washed and scrubbed down each day in order to prevent various diseases that are spread from animal to animal and animal to human.
Unless you have had to face a water crisis day after day, knowing that so many lives depend on you for water, you will never understand just how much this has meant to us.
Thank you once again,
Terence (Tee) Olivier - Rainbow Warriors SA
Solutions
From filters to tanks, JoJo offers a wide range of solutions to suite various applications including domestic, agricultural, industrial and commercial.
Having trouble finding the ideal solution for you? Have a look at what we have available and don’t hesitate to ask for assistance should you need any guidance.
Resources
Find installation guides, brochures & specification sheets, our 10-year warranty and other important documents here.