The Mark V Dry Pellet Chlorinator from B&B Chlorination treats well water problems in the well by dispensing an EPA-registered dry chlorine pellet directly into the well water. As the chlorine dissolves, it oxidizes iron and manganese to reduce staining, helps eliminate iron bacteria and hydrogen sulfide, and controls other bacteria and algae. Wired into the pump circuit, it automatically adjusts to water usage. With only one moving part and a compact size, this chlorinator is said to be efficient, low maintenance and easy to use. B&B Chlorination