Chlorinator & Instrument Service, Inc. (CISI) began operation in 1983 as the first Factory Authorized Repair Center for ADVANCE Gas Chlorinators manufactured by Capital Controls Company. Capital Controls discontinued the program in 1985, but we continued providing parts and service on all brands of gas chlorinators and accessory equipment to our clients across the country. We began working with International Dioxcide, Inc., where we expanded into chlorine dioxide, providing gas chlorine equipment to IDI for the generation of chlorine dioxide. Later, when development began on the next generation of chlorine dioxide generation equipment, CISI assisted in the equipment design, which led to the issue of U.S. Patents # 5,006,326 and 5,009,875 used for the generation of chlorine dioxide.

A major part of our work is in the training of plant operators in all phases of disinfection as well as maintenance and repair of gas feed equipment. These training services have been provided to New Jersey Water Association, New Jersey AWWA, New York AWWA, State of Louisiana, State of North Carolina and others. These training courses are state approved and available to all. Additionally, principals of CISI have provided expert witness testimony in legal cases involving disputes connected to instrumentation and control systems. We also provide advice and consulting services to the municipal and industrial water and wastewater treatment industries.

We also custom produce equipment components for the chemical feed industry, particularly for the generation of chlorine dioxide. Our chlorine dioxide components have been customized to meet the needs of this specialized chemical. These include eductors, automatic control valves, and vacuum chemical feeders. We also make complete package chemical feed systems available for all liquid chemicals and dry chemicals, such as potassium permanganate and lime. Particular emphasis is placed on the CHEM-XL vacuum operated chemical feed systems for all liquid chemicals. This unique system eliminates the need for costly and maintenance intense automated chemical metering pumps.