Are there other ways of eliminating/ significantly decreasing high calcium and hardness levels if you do not have the ability to vacuum to waste? Or are there companies you can bring in to vacuum to waste? We have been using Sustain for >10 years. Our pool is now cloudy, and the only measurement out of whack is the hardness/calcium. My husband already did 1 water exchange- drained most of the pool and refilled, but it is still high.
We are also considering changes chemicals. What chemicals work without adding calcium/hardness?
We have a vinyl pool/ Hayward filter (not allowed to use sand in our area), 22000 gal inground pool.
Is salt system better?