Rain water tanks for commercial buildings

Big commercial buildings such as shopping centres, factories and warehouses usually have ideal roof surfaces for rainwater harvesting. The surface areas of commercial rooftops are usually huge which means that vast quantities of rainwater can be harvested. The number and size of water tanks should be appropriate.

rainwater tanks at factory
Here is a simple online calculator to help get an idea of how much rainwater can be harvested:

Commercial buildings are usually in areas where space is not too limited and thus the rainwater harvesting potential should be maximised by installing the biggest water tanks available. This could entail a series of 10000 litre tanks placed along the building’s wall. Depending on the shape of the property and space available, it may be better to install fewer larger tanks such as the massive 15000 litre or 20000 litre JoJo polyethylene water tank.

Other factors such as building codes and municipal regulations should also be taken into account. Fortunately, poly or plastic water tanks can be bought in a variety of colours, making it easier to match any colour requirements. In some cases, building codes may not allow above-ground tanks, in which case, underground water tanks may be installed. In South Africa, JoJo Tanks’ biggest underground water tank of 6000 litres can be installed in series underground. These underground tanks are very robust and can even be installed under driveways and parking areas.

If the rainwater is to be used for irrigation, then very little, if any, filtration is required. If the rainwater is to be used for industrial processes such as cooling or as part of a manufacturing process, some filtration may be necessary. Rainwater that is to be used for drinking must be properly filtered/purified (to remove any contaminants that it may have picked up from the roof or gutters).

As large water tanks are a sizeable financial investment for any business, it would be wise to choose a well-known brand that can offer a warranty or guaranty. JoJo Tanks offer an 8-year warranty on all their tanks and high quality is assured. Click on the links below to view the wide range of JoJo water tanks, chemical tanks, silo tanks, septic tanks, tank stands and other high quality JoJo Tanks products available in South Africa.

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 5-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)

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

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