Use this product monthly or more often between deep cleanings with Filter Clean.
Remove cartridge filter element from the filter housing and rinse thoroughly with water to remove loose material.
Saturate the filter elements with water.
Spray Instant Cartridge Clean over entire surface area for maximum effect.
Let set for 5 minutes.
Rinse filter completely with water and replace filter back into spa. (Note: If filter is not completely with water and replace filter back into spa. (Note; if filter is not completely rinsed, foaming may occur. Foam Down can be used if foaming occurs.)
For heavily soiled filters, repeat steps 1-5.
Try Filter Clean for filters that require an overnight soak for deeper cleaning.