AutoPilot Pool Pilot Total Control pH Sensor - ECS19151 parts-ppp-powersupply The other option is replacing

The other option is replacing the controller with the newest series unit which is the AutoPilot ChlorSync Gen II

Compatible with AutoPilot Pool Pilot PPC1 (formerly RC35/22 - SC-36) AND PPC2 salt cells

SC-48 RC42 salt cells

Manufacturer: AutoPilot Pool Pilot - Original Equipment

The problem with ozone is that it doesn't allow for a residual to build-up

AutoPilot Pool Pilot Total Control pH Sensor - ECS19151 parts-ppp-powersupply The other option is replacingWe ship all ORP & pH sensors with liquid filled protective caps to avoid premature failure or damage. Typical Life: AutoPilot generally recommends that ORP & pH sensors be changed approximately every 2 years on systems operating 24 7 or every 4 5 years on systems operating on typical 8 12 hour pump run times for peak performance of Total Control systems. (Note: These time frames are for general reference. Life may vary depending on the application.)