It uses a salt water system for sterilisation, is much nicer than chlorine based system - machine does make chlorine from salt but you don't notice it when swimming. No I don't use ocean water, I have a fresh water well then I add about 20 sacks of salt every year.
Brine pools typically have an electrolysis system that manufactures chlorine from the salt. As such, it’s a salty with low chlorine levels pool, which is still more pleasant than a high-chlorine pool.
I understand what the salt is for. I don’t understand why you have to add more. If the water evaporates the salt remains. And the split sodium and chlorine also recombine. So how does it disapear?