The BBF has the ability to accomplish excellent mechanical filtration while simultaneously offering outstanding biological filtration in a single easy to operate unit that requires far less space than alternative filters. This filter utilizes a packed bed of floating bead media to strain solid waste as well as provide surface area for nitrifying bacteria. The gentle backwash process of the Bubble Washed Bead Filter allows the removal of solid waste while oxygenating the media bed and retaining a healthy colony of nitrifying bacteria.

This backwash process is extremely simple, only requiring minutes to complete. Simply turn off the pump or bypass the water flow and rotate the three way valve of the filter to the drain position. As the water drains from the filter air is introduced through the air inlet rising up and agitating the media bed. As the water level in the filter lowers, the beads are passed through the filter’s washing throat which projects the beads into the bottom chamber expanding the media and separating the solid waste. The solids sink, washing out of the filter while the media floats up causing a physical separation of the two. The backwash cycle is completed when the water has completely drained, the valve is again rotated to the normal operating position and the pump turned on.