BATH WATER CLEANING DEVICE AND CLEANING METHOD OF BATH WATER CLEANING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a bath water washing device and a cleaning method capable of carrying out cleaning of a filtration tank without causing a damage and the abrasion of a filter medium. SOLUTION: A pump 5 and a heater 9 side are connected to a switch valve 2 and water flows at an outlet side of the filtration tank 4. The pump 5 and the heater 9 side are also connected to a switch valve 1 side and water from the pump 5 is divided. A part of water only flows into the filtration tank 4. Thereby, a water flow is weakened and a backwash is carried out without generating a damage and an abrasion of the filter medium 40.