Slow pool maintenance chlorine 90% - Measurement: 1 kg in 20 gram tablets. -Trichloroisocyanoric acid tablets, 20 gr. Slow dissolving, especially for swimming pools. -Through its dissolving action it releases the appropriate amount of free chlorine into the water to keep the water clean. -Insert a tablet into the skimmer basket or floating diffuser. -With 8 hours of daily filtration, one pad will be enough for about 4 days to treat about 2 m³ of water. -High Quality - To keep a pool in good condition in all its parts and preserve crystal clear water, it is very important to ensure that algae do not form or accumulate microscopic suspensions that cloud the water. -That is why it is essential to use products that stop and eliminate this annoying problem. They can be used as an initial shock, especially after a while, but it is advisable to treat at least once a week. -It is also possible to use a combined product in tablets that includes the three actions of chlorination, flocculation and anti-algae. -To keep a pool in good condition in all its parts and preserve crystal clear water, it is very important to ensure that algae do not form or microscopic suspensions accumulate that cloud the water. -That is why it is essential to use products that stop and eliminate this annoying problem. They can be used as an initial shock, especially after a while, but it is advisable to treat at least once a week. -It is also possible to use a combined product in tablets that includes the three actions of chlorination, flocculation and anti-algae.