Unclean drainage

Analysis and maintenance: This fault is generally poor performance of the water pressure switch or air leakage in the air pipeline, so that the air pressure in the gas collection room becomes smaller, when the water level in the bucket has not fallen to the specified position, the water pressure switch contact will act in advance, so that the total drainage time is shortened, resulting in unclean drainage. Just try to find the air line leak and seal it with 401 glue. If the water pressure switch is damaged, replace it.