Water is a fundamental resource. Even today, there are no easy-to-implement recovery systems for the common use of everyday water. Water waste goes hand in hand with drought and scarcity of this resource. A conscious consumption of water could improve the environmental situation, victim of climate change that has led to a significant decrease in rainfall. The solution we propose is economical and easy to apply, both in the private and public sectors (schools, hospitals, companies, etc.), both old and new.