Use and Care Manual

8
INSTALLATION
IMPORTANCE OF BACKWASHING
The importance of backwashing cannot be overstated. Dense lter media can become “packed” without
proper and frequent enough backwashing. Debris will remain trapped and create channelling within the
lter bed. This will result in the lter bed exhausting early. Moreover, if debris is not ushed from the media
grains, the lter bed will become dirtier and dirtier as time goes on until the lter operation fails.
BACKWASHING INSTRUCTIONS
1. Switch off the Pump. Close the Inlet Valve. NOTE: If a pump is installed, switch the pump on and off,
instead of closing and opening the Gate Valve.
2. Release the lter’s pressure by loosening Pressure Release Valve until the Pressure Gauge needle
drops to zero <0>.
3. Re-tighten Pressure Release Valve.
4. Depress and turn Handle to the BACKWASH position. In the BACKWASH position, the water ow is
automatically reversed through the lter so that it is directed to the bottom of the lter vessel, up through the
sand, ushing the previously trapped dirt and debris out the waste line.
5. Switch on the Pump. Backwash water will ow out through drain pipe.
6. When the backwash water in the sight glass appears clear, switch off the Pump.
7. Depress and turn the handle to the RINSE position. In the RINSE position, the water ow is directed
through the lter bed and out of the lter through the backwash outlet. This process settles the lter media
bed into place and ensures any dirt or debris is rinsed out of the lter, preventing possible return to the
pool.
8. Switch on the Pump. Rinse water will ow out through the drain pipe.
9. When the rinse water in the sight glass appears clear. Switch off the Pump.
10. Depress and turn the handle to the Filter position and switch on the Pump.