Klorman is a simple in-line point of use disinfection system that utilizes a compacted calcium hypochlorite chlorine cartridge which releases active chlorine sanitizer into the water flow. Simple adjustment is provided by varying the projection of the cartridge into the water stream to accommodate different flow rates as well as adjustment of waterflow and pressure through the unit. Dosage levels vary with site conditions and treatment water chlorine demand,though sufficient dosage is available to ensure adequate water disinfection.