Water tanks: What’s best – plastic, steel, fibreglass, concrete or wood?

liquid storage tanks
While there are situations where certain materials are favoured over plastic or polyethylene tanks, there are not many. We recommend high quality rotational moulded poly tanks for some of the  reasons mentioned below.

Plastic vs steel tanks: Plastic or polyethylene tanks are lighter, easier to transport, do not rust or corrode and are comparatively less expensive than coated steel tanks and much less expensive than stainless steel tanks. Rotational moulded poly tanks do not have seams as steel tanks do; seams can rust, corrode and are sometimes weak spots where cracks and splits can occur.

Plastic vs fibreglass tanks: Fibreglass tanks are heavier and more prone to cracking as the tank walls are fairly rigid. Interestingly, fibreglass tanks allow more sunlight to enter due the gaps in the fibres. Good quality fibreglass tanks will also be much more costly than equivalent quality plastic tanks (the manufacturing process of building fibreglass tanks is time consuming and thus costly).

Plastic vs concrete tanks: Concrete tanks need great technical know-how to build and install properly. If not properly built or installed, concrete tanks can be plagued by leaks from cracks in the walls and improperly sealed interior. The cost of concrete tanks is also relatively high. Concrete tanks can also be prone to chemical erosion in some environments. Concrete water tanks are usually considered where the amount of water storage capacity far exceeds what normal poly water tanks could handle (for example a municipal water storage facility). The biggest plastic water tank available in South Africa is their 20000 litre vertical tank.

Plastic vs wood barrels: Although this is not a common comparison, there are many wood barrels being offered as rain barrels or rain drums. Aesthetically, an oak rain barrel may be better than a plastic or polyethylene drum version but may suffer from wood rot, is difficult to keep clean and may be less hygienic than the plastic drum equivalent.

Plastic water tanks certainly have many advantages over tanks made from other materials but this is assuming good quality poly water tanks are selected. The cheapest plastic water tanks may last a year if you’re lucky and may even leach harmful chemicals into your stored drinking water. In South Africa we recommend polyethylene storage tanks made by JoJo Tanks – high quality, rotational moulded tanks carrying an 8-year warranty.

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 TANKSAlso 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 8-year guarantee on these water tanks make JoJo products one of the best choices in South Africa.  *All JoJo Tanks polyethylene tanks and products now carry a 8 year warranty (on tanks purchased on or after 1 July 2013)*  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)

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