does anyone now the pin out for the 3c cartridge?im considering wiring an external flow switch to the panel as unreliable built in flow switch giving some headaches.why ditch a cartridge that is still generating chlorine?iv got a second cartridge where the built in thermistor failed with only 1 season of use.id like to find a hack here as well.the cost of replacement cells has skyrocketed recently.gotta say though when its working it works well with my 20k gallon kidney.