What can I use a rain water tank for?

The article below cautions against using rainwater from rain water tanks in urban areas for drinking purposes. However, rainwater collected from rooftops and stored in water tanks can be turned into high quality drinking water by using appropriate water filtration and purification.

rainwater tank uses

Rainwater tanks should not be used as a means of supplying drinking water in urban areas due to traffic and industry emissions that can settle on roofs.

In order to get good use out of a rain water tank and maximise its value, you should consider connecting it for indoor usage. In this way you can use the water tank all year round and particularly during the winter months when outdoor use is at a minimum.

Garden watering
The percentage of household water use in the garden varies from less than 25% to more than 50% across Australia, generally depending on a household’s geographic location.

Larger rain water tanks tend to be more beneficial as you can store a large amount of water from the wet season to use in your garden through dry periods.

Where space is an issue, you may wish to consider a different style of water tank or installing two smaller water tanks.

Toilet flushing
A toilet can use up to 12L per flush so installing a tank to toilet system can lead to major water savings. An average person uses 30L of water in the toilet per day or 210L per week.

You can install an automatic diversion directly from mains water if the rainwater tank is empty. Alternatively, a trickle top up system uses a float valve to measure how much water you have in your tank. When the water level gets too low, mains water will trickle into the tank to top it up. However, if the tank contains mains water it cannot be used on the garden during water restrictions, so this option should be considered carefully.

In the Laundry
You can save a large amount of water by connecting your washing machine to your water tank.

Washing machines can use up to 150L of water per load and most households do 5-6 loads of washing per week. A four star front loading washing machine only uses 47L per load.

Source: Savewater

Click on the links below to see  the wide range of JoJo water tanks suitable for rainwater harvesting and other water storage solutions.

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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