It is disclosed a water utilizing system, particularly rain water, running down from a roof (9) into a trough (10) and into a lead (11) which is connected to an adapter (12) provided with a discharge outlet (16) of the excess of rain water and with a duct (13) opened into a container (1) with a lid. The container is provided with a pump (2) with a float which having a water duct (3) opened into a container (4) and to the irrigation or to a pond (7) in the garden.
