Domestic water-saving connecting vessels

The utility model discloses a domestic water-saving connecting vessels comprising a connecting pipe disposed between a wash basin and a storage tank of a toilet. One end of the connecting pipe connects with a wash basin downcomer with a valve thereof, while the other end of the connecting pipe connects through a tee junction with a water outlet pipe, which connects with a standby water receiver; the third end of the connecting pipe connects a floating ball linkage valve for controlling the tee junction in the storage tank. The connecting vessels is very convenient for recovering and utilizing water, wherein the valve below the water basin closes in normal, living water for washing face or washing clothes can directly flows into the storage tank of the toilet to use the water again and save water. The utility model with simple structure is convenient for controlling and can automatically close the floating ball linkage valve when the discharged water for washing clothes is too much and the storage tank is full to make the water flowing into the standby water receiver from the water outlet pipe, thus has low cost and is easy for spreading.