They are back washed when required.
Sand filter cleaner chemical.
To clean your sand filter you ll need to backwash the filter and then rinse it.
B turn pump off and return dial valve to filter position.
The purpose of this is to allow the cleaner to move from the skimmer basket to go through the pump of.
For best results follow the steps below.
Every four or five years it pays to replace the sand in a sand filter to maintain its efficiency.
Add liquid sand filter cleaner before you backwash to eliminate built up contaminants oils minerals and gunk making your sand filter much cleaner.
This pool chemical is designed to improve your filter s efficiency by removing dirt lotions body oils insects leaves and other pool contaminants.
Liquid sand filter cleaner keeps your sand filter working efficiently.
To use pool sand filter cleaner just add it through the skimmer with the filter valve on the backwash position.
Start it up again the next morning on rinse to flush out dirt oils and minerals.
Sand filters are not cleaned with chemicals.
Then attach your backwash hose to the backwash nozzle and aim the other end at a drain or bucket.
Start backwashing the filter to remove dirt and debris.
After the cleaner is sucked into the filter shut off the pump and allow the chemical to work overnight.
The sand in your pool filter should be chemically cleaned at least once a year to ensure proper pool operation.
A backwash filter for 3 5 minutes rinse for 20 30 seconds to remove the debris that can be rinsed off.
First turn it off and switch it to the backwash setting.
The handle of the sand filter should then be moved to the backwash position then empty the whole bottle of the sand filter cleaner into the skimmer which is located beside the swimming pool.
Slowly add the sand filter cleaner into the skimmer.
Hth filter cleaner is a dye free and fragrance free proprietary blend of proteins and surfactants.
Hth filter cleaner is a non corrosive filter cleaner and backwash aid.
Use annually to rejuvenate your filter sand.
Turn the pump on immediately for some 5 10 seconds.
This results in better filtration which leads to cleaner safer water in your pool.