WYSIWASH calcium hypochlorite caplets are now available in a new convenient 9-pack. Easy to use with no mixing or mess, just add a caplet to the WYSIWASH dispenser canister. Use with either cold or hot water (1490 F/600 C), caplets last up to 3 1/2 hours of continuous use. One tablet per 875 gallons of water at a flow rate of about 250 gallons per hour, makes a 75 ppm solution. Unlike Chlorine Bleach, it loses only about 5% of its potency in 18 months. Contains no lye, therefore it is not nearly as corrosive as bleach. Extremely economical in-use cost is less than a penny per gallon!