Yes, for pools, chlorine use can be reduced to 0.5 to 1.0 ppm and for hot tubs/swim spas both chlorine or bromine use can be reduced to 1.0 to 2.0 ppm. That is typically up to 50%* less than standard pool and spa water care. *Compared to the minimum EPA recommended chlorine level of 1.0 ppm for a stabilized swimming pool and the minimum ANSI recommendation of 2.0 ppm for a spa.