Dispensing unit for chemicals used to treat industrial water, namely, to treat water present in photo processing washes, air washers, sewage systems, pasteurizers, warmers and cannery cooling water systems, once-through cooling water systems, recirculating cooling water systems, commercial air conditioners, refrigeration condensate and dehumidifier basins and drip pans, wastewater treatment systems, pulp and paper mills, non-potable water supplies, lakes, ponds, reservoirs, ornamental ponds a...

dispensing unit for chemicals used in the treatment of swimming pools and spas