To achieve proper conversion:

1. Filter to remove D.E. from grids.
2. Disassemble filter and remove all remaining D.E. from filter grids.
3. Once clean, reassemble filter and install into circulation system.

To replace D.E.:

1. Open skimmer lid and remove skimmer basket.
2. With pump running, add 3 cups per 12 ft² filter area of Cellulose Fiber directly into skimmer several cups at a time.
3. Replace skimmer basket and operate filtration system as normal.

To enhance pool clarity with sand filters:

1. Backwash filter.
2. Open skimmer lid and remove skimmer basket.
3. With pump running, add 8 cups per 2 ft² filtration area of Cellulose Fiber directly into skimmer basket.
4. Replace skimmer basket.
5. Operate pump and filtration system continuously for 24 hours.
6. For best results, backwash filter to remove debris and dirty filter media after 48 hours.

To enhance cartridge filter performance:

1. Clean cartridge
2. Open skimmer lid and remove skimmer basket.
3. With pump running, add 12 cups per 50 ft² cartridge surface area of Cellulose Fiber directly into skimmer several cups at a time.
4. Replace skimmer basket.
5. Operate pump and filtration system continuously for 24 hours.
6. For best results, remove dirty cartridge and clean to remove debris and dirty filter media after 48 hours.