SpaGuard Filter Cleaner (1 qt) Chlorine Free Replace the filters with new

Replace the filters with new or PROPERLY cleaned filters (using a product such as Spa Marvel Filter Cleaner)

1 tsp per 200 gallons of water

backwash and clean filter

add the algaecide appropriate to your needs

If you live in a climate that has temps that get below freezing in the winter

SpaGuard Filter Cleaner (1 qt) Chlorine Free Replace the filters with newSpaGuard Filter Cleaner 32 oz Spray Bottle SpaGuard Filter Cleaner cleans oil and grease from all types of filters. Keeping the filter clean improves filtration and water circulation and lengthens the life of the filter. Using Filter Cleaner regularly keeps insoluble particles filtered out of the water, which puts less load on the chemical products. This can help reduce maintenance costs. Directions: Remove filter elements and remove excess debris