The benefits of grey water recycling

Grey water from baths and showers can safely be used for garden irrigation as long as it is not stored in water tanks for more than 24 hours. Storing greywater in a water tank for longer than 24 hours could result in potentially dangerous micro-organisms  multiplying. The best policy is to utilise the grey water as soon as possible. If for some reason the gray water must be stored in a cistern or water tank for longer periods, it must be filtered and sterilised.
grey water tanks

As population grows and water supplies diminish, water conservation becomes an important issue. On a personal level, as supply decreases, cost generally increases, so the conservation of this natural resource can help minimize rising water costs. We can consider water efficiency in our regular activities as we water our lawns, take a shower, wash our cars or run the water as we wait for it to get warm. One conservation step that we can take is utilizing greywater. Since 60 – 65% of our indoor water use can possibly be recycled as greywater, this effort can help us to reduce our dependency on diminishing groundwater reserves.

What is Greywater?

Greywater is water that has already been used in applications such as in washing machines, showers, baths, and most sinks. Greywater is not a potable source since it contains bacteria and pathogens, which can cause various diseases. However, filtered greywater could replace fresh water in the landscape irrigation of non edible plants. Another option for this recycled water would be to utilize it for the purpose of toilet flushing.

In comparison, blackwater is water that has been used in sewage systems. The high organic waste content makes it difficult to reuse blackwater safely. Kitchen sinks, garbage disposals and dishwashers are considered as either greywater or blackwater depending on the area.

Greywater Systems

Due to the popularity of greywater recycling, you can now find different commercially available greywater systems. Some of these are simple low-cost systems while others may be more sophisticated and expensive. Simple systems usually do not treat water before being can consist of merely creating a process allowing recycled water to dump directly into the landscape. Complex sophisticated systems usually remove the impurities in greywater before irrigation.

Some sophisticated greywater systems utilize a sand filter connected directly to the drain line. The sand filter gets rid of some of the bacteria and impurities. After passing the sand filter, the greywater is then directed to a sump tank where it is pumped in the direction of the area designated for irrigation or for reuse in the toilet. Be sure to check with your local municipality to learn about any regulations or specifications that they may have in regards to utilizing greywater.

Source: Eco Evaluator

Whether you need water tanks for a greywater system, rainwater harvesting or any other reason, we recommend water tanks and other products manufactured by JoJo Tanks; click on the links below for more information.

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)

, , , , , , , , , , , , , , , , , , , , , ,