Rainwater harvesting is the collection of water that would otherwise have gone down the drain, into the ground or been lost through evaporation. Large surfaces such as roofs are ideal for rainwater harvesting and according to the Environment Agency, they can provide up to 100,00 litres of water per year from a medium sized area. This water can be used to flush toilets, water gardens and even feed the washing machine. Rainwater harvesting systems can be installed in both new and existing buildings. Re-use of rainwater has the potential to save a large volume of mains water and therefore help reduce the pressure on water resources and your bills.

rainwater

How does it work?

A typical rainwater harvesting system comprises of a collection space (roof), some sort of filter and a means of storage (usually a large tank). The storage tank for household water use should be sized to hold 5% of the rainwater that can be captured in a year. Many systems use a control unit t monitor the water level in the storage tank and to display information to the user. If levels drop too low the system switches to the mains water supply and if levels get too high an overflow trap drains off the excess water and allows any floating material to be skimmed off into a storm drain.

Why should I save water

Water is not as abundant in England and Wales as you would think. We only have 1,334 cubic metres per person per year, much less than France which has 3,065 cubic metres. The average person n England and Wales uses 150litres of water every day - almost 50% more than 25 years ago. It’s vital that everyone uses water wisely and not just durig a drought or if we live in an area with water restrictions.

SprintBio Raintank Systems

Our tanks are a highly practical alternative to expensive underground rainwater systems. They include a sight gauge and a self-priming jet pump capable of pumping water to a height of over 40 meters. Each wall tank holds 750 litres (165 gallons), with a space saving footprint. Tanks can easily be linked to each other to expand your rainwater collection system as needed. The system features a highly efficient rainwater filter-diverter which is installed on the downpipe to clean the water before diverting it sideways into the tank. When the tank is full, the filter collector automatically sends water to the drain as usual.

Available from the SprintBio online shop
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