Rainwater Harvesting System
Rain water can be harvested with a few simple steps, both/either by installing wide tanks that can be opened at the time of rain, or by running tubes directly from the buildings rain gutters. If so, simply add a filter to the tube to clear out any debris or dirt.
As of now, the rules in Brazil doesn’t allow the use of rainwater in showers and drinking taps. However, it can still be used for things such as cleaning, washing clothes/bed linens or for watering gardens.