Dechlorination The use of chlorine-free water in garment dyeing is necessary to ensure reproducible processes and shades from load to load. The bad effects of excessive chlorine in the water supply can range from subtle to dramatic. This presence of chlorine can be very costly to the contractors and should be controlled. A solution is the continuous dechlorinating dosing system recommended by Chemical Technologies. This dechlorinating system will eliminate the problems associated with excessive chlorine in the process water supply.