I've had my salt system for about 8 years now. I add a fair amount of water due to evaporation (San Diego area) and have attempted to reduce the water hardness by draining appro 50% of the pool water and refilling. With all that, I still have never had to add salt to my pool and the salt level is usually at approx 3400 when my salt cell is clean.
I'm perplexed by this - any thoughts?
BTW - the water is rock hard here and draining and refilling did little to reduce the hardness.
Thank in advance for any advice.