The first stage of filtration removes suspended debris when water is sent through layers of varying densities of filter media -- from coarse to fine. Water then passes over Bio-Balls, a biological filter medium, where bacteria colonies thrive and effectively remove harmful ammonia and nitrites.
Flushing the filter to remove dirt and debris is easy: simply shut down the pump, rotate the valve from filtration to flush mode, and turn the pump back on! A purge handle compresses the filters for extra efficiency without endangering the biological bacteria colonies. The water will clear the filter, and as soon as the water runs clear, the pump can be shut off and the filter returned to filtration mode.
Note: All prices in US Dollars