Rain Water Harvesting
- Darryl de Lange
- Dec 5, 2013
- 1 min read
RAINWATER HARVESTING
Rainwater harvesting is the collection, storage and distribution of rainwater and the perfect storage facility for rainwater is a water tank.
Rainwater can essentially be used anywhere you use tap water.
The idea of using drinking water to flush toilets and water lawns is wasteful and irresponsible, especially in light of the population growth and water shortages across the country.
Rainwater harvesting greens your home lessens your environmental footprint. Rainwater is an absolutely FREE source of water.
You will reduce flooding and erosion caused by storm water run off
YOUR ROOF YOUR ALLY
1mm of rain allows you to harvest 1L of water per m2 of roof area – just allow for a 15% wastage factor.
Make sure that your gutters are installed to direct rainwater to rain water tanks.
An annual rainfall of 500 mm on a roof surface of 50 m² amounts to 25 000L of potential safe drinking water that can be preserved (40L per day for 625 days) or wasted! In South Africa, the water allocation per day per person is 25L
WATER SECURITY
Your water tank filled with harvested rainwater provides water security when the municipal water is cut off for any reason whatsoever. If your tank is connected to the water mains, it will act as a storage buffer and depending on the size tank installed you will have running water for up to 48 hours.
A water tank gives you total control over your water supply
The process uses simple technologies that are inexpensive and easy to maintain
A rainwater harvesting system can be easily retrofitted to an existing structure or built during new home construction.
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