HOW RAINWATER TANKS WORK and Why You Should Have One…


Rainwater tanks are a real boon to mankind. A dual blessing for nature and man as they work to the benefit of both.

In a time where we have to preserve every possible resource, rainwater tanks do just that. Before considering the size and type of these tanks, let’s find out how they work.

Rain is collected in water bodies and absorbed by the Earth’s surface. Even with all the new technology, humankind still depends on rain to replenish water supplies every year. Rainfall is erratic – sometimes it is excessive and sometimes extremely scanty. To make sure we can retain as much of the rainwater, harvesting it has added importance.

Rainwater tanks work and play a vital role in rainwater harvesting. A particular system installed in a house depends on various factors. When rain falls, specific catchment areas of the roof retain the water; therefore; this water rolls through gutters installed around the roof area and then through pipes installed above or below the ground. The water is then collected in water tanks and stored. This water can be for many things around the house.

With this water you can; top up your swimming pool, wash your car and clothes, use it to flush toilets. It is perfect for your garden; you can even develop your very own garden irrigation system with a suitable filtration system.

Keep a few things in minds while choosing your water tank

  • Amount of rainfall received in your region
  • Number of people in the house
  • The budget and the amount of money required for the overall maintenance
  • Area needed to install the water tanks
  • Special permission and added council requirements
  • Catchment area on the roof and gutter system in place.
  • There could be rebates available for particular sizes and could affect the overall cost of your water tank and installation set up.