WATER QUALITY MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent the adhesion of dirt to the inside of an equalizing tank. SOLUTION: A diffusing pipe 17 for diffusing air is provided on the bottom of the inner wall of the equalizing tank, and the air diffused through the air hole 17a of the diffusing pipe 17 is moved as bubbles to prevent the adhesion of dirt to the inner surface of the equalizing tank 1.