How to Drain Water
Thread on nipple fitting to your multiport variflow valve. Attach the backwash hose to the nipple fitting using a hose clamp. Then stretch out the hose. Shut off the filter. Point the omniport valve to waste. Turn the pump back on, and monitor the level of the pool. Drain the water until the level is around mid skimmer plate. Then, turn off the pump, turn valve back to filter, drain and roll up the hose, and turn on system. If you have a cartridge filter, you will have a valve similar to this sticking out of the bottom of the filter. In that case you would stretch the hose out to the street, turn the valve in line with the pipe, turn on the pump, and with the filter running you would lower the water level to the middle of the skimmer plate.