Following the raw water's entry into the distribution channel, it is channeled into the siphon riser through the inlet pipe, then evenly distributed over the filter medium by baffles beneath the cover. The filtered water rises through a connecting channel to the rinse water tank, and overflows into the clear water reservoir. As the filtration time increases, the water head loss in the filter medium gradually rises, causing the siphon riser level to ascend accordingly. When the water level reaches the opening of the siphon auxiliary pipe, water flows down from the auxiliary pipe, creating a vacuum that draws the water from the descending pipe in, drastically increasing the vacuum within the pipe and initiating backwashing. The rinse cycle ends when the water tank level falls to the siphon break point, after which filtration restarts.
