TCCA dissolves slowly in water, allowing for continuous, measured dosing of chlorine, especially when in tablet form. Treatment suitable for : Swimming Pool, Water Feature, Spa Pool, Fountain and reduce algae growth. TCCA is available with 90% chlorine concentration. Due to the high chlorine content, it is easy to handle for large pools. It reduces chlorine loss during the day time. Trichloroisocyanuric acid is stable and does not strip like many other halogen compounds. It reduces algae growth.