Hi,
We are planning to harvest rainwater in our house. We have a 130 ft deep borewell in our house which is dry and is not currently being used. We do not plan to use it in future too.
I am planning to direct the rooftop water into this borewell. I would like to know if it is necessary to first filter the water before harvesting or can I redirect the rainwater into the borewell without filteration.
I also want to know if harvesting this water have any negative impact on the water table. I would like to keep the cost very minimal. Hence please suggest accordingly.