Directions for use:

Cartridge Elements or DE filter grids 1. Remove cartridge elements or DE grids from filter tank and hose off loose material 2. In a pail, bucket or trash container with 5-10 gallons of water, add 1L bottle of Filter Perfect 3. Place cartridge elements or DE grids in solution and soak for a minimum of 6 hours (preferably overnight) 4. Remove from solution and rinse thoroughly Note: Clean cartridge elements should be allowed to dry before re-installing Sand Filter 1. Have pump running and filter in backwash mode. Suction should come primarily from skimmer, not main drain 2. Add 1L bottle of Filter Perfect to skimmer 3. Once contents of bottle have entered the filter, turn pump off and put valve in either close or filter position, for a minimum of 6 hours 4. Turn pump on with filter set to backwash, run until water flows clear (Do NOT allow pump to run dry) 5. Return filter to normal operation