Installing water tanks underground

Water tanks can be installed underground or below ground level; there are two approaches: use purpose-built underground tanks or build a chamber with retaining walls for conventional above-ground water tanks.

underground water tanks
Underground tanks, such as the JoJo 6000 litre underground water tank, are designed to withstand external pressure from the surrounding earth when completely buried.  Properly installed, high quality underground tanks, such as those made by JoJo Tanks, can even withstand vehicle traffic and can be buried beneath driveways and parking areas.  See more details of the installation procedure for underground tanks here.

Another approach to placing water tanks underground is to use normal above-ground water tanks but to first build retaining walls to keep the surround earth away from the water tanks.  Normal water tanks, such as JoJo vertical water tanks, are not made to withstand external pressure on the walls and so must never be buried with earth pushing directly onto the walls (it may seem fine when the water tanks are full but when they are empty, the walls will probably cave in and/or distort).  Placing conventional above-ground water tanks in underground chambers (with bricked retaining walls) has advantages: the water tanks can be readily inspected and ancillary fittings, pumps, etc can be more easily installed and replaced if necessary.

JoJo Tanks offer a very wide range of water tanks, chemical tanks, transporter tanks, water tank stands and other products – there is sure to be the right tank for the required purpose.  Click on the links below to find your ideal JoJo water tank or other JoJo Tanks product.

JoJo Tanks South Africa offer a wide range of products such as plastic water tanks and chemical tanks to suit every household, business or agricultural need, including silo tanks and silo tank stands as well as other high quality JoJo Tanks products.  See JoJo Tanks’ VERTICAL TANKS, HORIZONTAL TANKS (transporter tanks), STEEL TANK STANDS and OTHER JOJO PRODUCTS and see JoJo Tanks’ NEW 6000 LITRE UNDERGROUND TANKS. Also see our FAQ and WATER TANK PRICES.

JoJo’s superior polyethylene plastic water tanks and steel water tank stands make JoJo Tanks the leaders in plastic water tank technology and the quality, affordability and 5-year guarantee on these water tanks make JoJo products one of the best choices in South Africa.  JoJo’s water tanks and chemical tanks come standard with a number of features that are often lacking on cheaper/inferior plastic tanks made by other companies in South Africa.

We are authorised JoJo Tanks dealers in South Africa and dispatch orders directly from JoJo Tank depots to save on transport costs. Full range of JoJo Tanks products and JoJo water tanks for sale.  CONTACT US for a quote on the right JoJo water tank or other JoJo product for you.  Special discounts are available on multiple orders of chemical tanks and water tanks and to our commercial and government customers. We can usually delivery tanks and tank stands free of charge to business/commercial addresses in South Africa.


(15000 litre and 20000 litre JoJo vertical water tanks & chemical tanks are available on order directly from JoJo Tanks’ main factory)

Live in the USA and need rainwater harvesting equipment?  Click HERE!

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