The first step when backwashing your pool is to turn off your pool pump and cleaner and empty your weir basket. Move the handle on the multiport valve of your filter to the ‘backwash’ position. Switch the pump on and let the water run until it is completely clear in the sight glass. This will usually take approximately 2 minutes. Turn the pump off and move the multiport valve handle to the ‘rinse’ position. Switch the pump back on again and let it rinse for 30 seconds. Turn the pump off again and move the handle to the ‘filter’ position to continue cleaning your pool as usual. This procedure should be implemented at least twice a month.