Valve configuration and electric control system of the remaining hot water utilization system of bath

摘要

PROBLEM TO BE SOLVED: To provide a residual hot water utilization system capable of changing a bath style from a conventional style of reheating residual hot water to a new smart bath style thereby improving health maintenance.SOLUTION: The residual hot water utilization system has a drain valve 42 at the downstream side of a bathtub water faucet 47. The open/close operation of the drain valve 42 is electrically interlocked with the open/close operation of a piston cylinder type or a diaphragm type pop-up bathtub water faucet 47, which operates to open/close by means of ON/OFF of an electrical motor or fluid or a manually operated pop-up bathtub water faucet.