I have a Nature2 Fusion chlorinator, but I really don't use it. There are two parts to this...the chlorine tab dispenser which I only use if I leave home for an extended period of time...and the Nature2 cartridge which I haven't replaced in a couple of years since I have started to use the Trouble Free Pool method. I just keep an old cartridge in the unit because you need something there to seal it.
My Calcium Hardness has been increasing over the last year or so and is now at 775. I'm trying to figure out why this is happening. Could it be from the old Nature2 cartridge?
I'm in the Central Valley of California and replacing water in the pool is a no-no due to drought. If I drain water from the pool, the water police will be on me like a ton of $%$#.
Is it possible to get a blank cartridge to replace the Nature2 cartridge? This would allow me to use the tab dispense part when needed but not use the mineral stuff in the Fusion unit.