Plumbing Africa February 2020 | Page 48

46 FEATURE Day Zero still casts a long shadow By Eamonn Ryan Like mobile telephony two decades ago, the ultimate market size for rainwater harvesting and filtrations systems is unknown. Day Zero in Cape Town proved to be the catalyst for sharply increased residential demand for rainwater harvesting (RWH) systems with local suppliers of tank and filtration systems reporting exponential growth over the past year. Figures of water tank sales supplied by the industry body, the Association of Rotational Moulders of Southern Africa, shows that growth in 2018 was 28.7%. Demand has doubled in the past several years, from 16 401t in 2010 to 32 000t in 2018. The most important rainwater harvesting we do is capturing river flows in our dams. www.plumbingafrica.co.za @plumbingonline @plumbingonline Build It, a network of 300 hardware stores, reported that its sales of JoJo Tanks increased by 500% over @PlumbingAfricaOnline February 2020 Volume 25 I Number 12