The microprocessor control has just one moving part in the water stream No dials or gears - once you set it, you never have to set it again The meter water softener automatically adjusts to any changes in water usage to save salt and keep you from running out of soft water - Regenerates only when needed. Has a capacitor backup to keep the memory in case of power outage. The meter water softener fills the brine tank with clean, soft water to prevent plugged injectors, which means zero service. Flows up to 25 gallons per minute.