Water, Sewage & Effluent May-June 2018 | Page 35

Water Sewage & Effluent May/June 2018 33 About the author Nick Dall is a freelance writer based in Cape Town. He has written about travel, lifestyle, and the environment for over 50 publications — both in South Africa and abroad. Find his work at www.nickdall.co.za. And now he can include this publication in his portfolio. Typical domestic water usage 30% or more: irrigation 30%: grey water (15% bathing/handwashing and 15% laundry) 30%: toilets 3%: drinking and cooking (including dishwashing) environment Aqualoop The Rolls Royce The groundbreaking Aqualoop system from German manufacturer Intewa is an utterly incredible treatment system that allows you to store grey water for later use in your pool, washing machine, and toilets. The downside? It’s expensive and difficult to r etrofit. The 1m × 2m unit pre-filters the water mechanically, before breaking it down biologically and finally passing it through an ultra- fine membrane to produce water that is almost good enough to drink. The germ-free water is then stored in a ‘clearwater tank’ until it is needed. Pricey, but worth serious consideration for any new build. R65 000 excluding installation, which starts at R10 000, depending on the requirements. www.purerain.co.za u Second Movement Feeling flushed? Diversion systems are a great, affordable grey water option, but they can only be used for irrigation so are not much use in the rainy season. Water Rhapsody’s Second Movement lets you use grey water to flush your loos and can save up to 70 litres of water per person per day. The system can be very difficult to retrofit, but if you are doing a new build or an extensive renovation, it could be a good idea. R22 000 for the first toilet and R12 000 per toilet for a further five toilets. www.waterrhapsody.co.za Water Rhapsody systems come with a hose and a pyramid sprinkler. Between R12 000 and R24 000, all inclusive. www.waterrhapsody.co.za