One millimetre of rain on the average roof generates 250 litres of water. Normally this runs off your property and is wasted. But by fitting a raintap to your gutter downpipe, you can divert that water to your water storage tank, lawn, trees, plants or pool to make maximum use of even light rainfalls.

Available at most hardware stores, the Raintap retails for around $50. Check out the website for more info.