There are different types of rainwater harvesting. The one that I have done is putting the rain water back to the under ground water. Because of so many roads and houses, the rain water doesn’t go back to the ground anymore. It is mostly evaporated. 

To start with I first got some pipes, joints and some glue:

We were very lucky to have a well in our house. It was all about filtering the water a little bit and leave the water to the well.

Install the filter in the pipe. This will block all the leaves and other suspended particles from entering the well.

Cut the pipe as required…

Now put them together. Overall it was very easy for our house. Sometimes you might have to do a lot more.

I can now collect all the dirt here:

I love the fact that now all the rain water, water wasted while watering the plants, overflowing water from the roof tank will all go back to the ground water table.

I love the whole feeling. Folks… I request each one of you to do this / investigate in your own house. Feel free to write to me if you need any help. It is a simple weekend project and doesnt cost much. But it sure makes a BIG difference to the world!