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Water woes? Explore Rain Water Harvesting

Posted by Royal Sundaram on 29 Jun 2011

Water, water everywhere and not a drop to drink! Fresh water availability is rising concerns in several countries of the world, majorly India and China, the two most highly populated countries.

With irregular climatic conditions and perishing perennial water sources, saving every droplet of water has become very important today.  Is there something that we can do to help ourselves?

 

Yes, Rain Water Harvesting is a simple and easy to follow technique which can go a long way in recharging the ground water table.

Learn more about it in this article.

In simplest words, rain water harvesting is accumulating and utilizing rain water. You can either store the rain water in tanks or direct it into bore wells to recharge ground water levels.

Collected rain water can be used to wash clothes and utensils, in bathroom, for cleaning home. If treated and purified effectively, it can also be used to bathe and drink.

Rainwater harvesting is beneficial because:

  • It reduces our dependency on groundwater.
  • It can help in replenishing ground water.
  • It prevents erosion and water-logging
  • It prevents saltwater intrusion into groundwater.

According to experts, you can collect upto 100 Litres of rainwater from a single home, in a single shower!

How to go about it :

Catchment – Step 1

The home’s terrace serves as Catchment or an area from where rain water is collected.

  • Select the side of the roof where you wish to set up the system.
  • Attach 2 or 3 pipes which would channel the rain water into a filtration system.
  • You can attach PVC filters to prevent gravel and leaves from being washed down.
  • Keep the roof clean, especially before monsoons.

Gutters – Step 2

Gutters or Conveyance refers to the pipes which channels rain water into the filtration system.

  • Its one end lies on the roof and the other is attached to a filtration system.
  • Keep the end, which is attached to the filtration detachable. You should have the option to let water out on to the ground and not into the filtration system.
  • During the first shower, it is desirable to let the water into open ground and not harvest it, as it contains dissolved polluted air, dust and bird droppings.

Filtration – Step 3

Filtration is essential to remove gravels, leaves and other contaminants.

  • You can either buy a tank or construct one with cement.
  • The unit contains materials which filters contaminants. It is usually filled with coarse sand, charcoal, coconut fibres, pebbles, fine cloth, etc.
  • At the bottom of filtration unit, attach a pipe which moves rainwater into the Storage unit.
  • Filtration unit should be kept higher than the Storage unit.

Storage – Step 4

Storage Tank is the place where the water will be stored for use.

  • The storage tank can be PVC tank with a tap for using water
  • You can also make a sump, connected to a pump.
  • Alternatively, you can let out the water from Filtration unit into your home’s well.

Rain water harvesting is not very expensive and a one-time-investment. It doesn’t require much maintenance. A mason and plumber will be able to finish the job in 10 days.

So before rains begin, make a system to harvest it. Who knows, we may be able to make water woes history!

Protect your home and the precious contents of your home from floods. Learn about Royal Sundaram Home Insurance Online.

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