Did you clean your filters? For water to be cloudy without use, something is getting into the water, dirty filters or gunk in the lines.
I put a clean filter in when I changed the water. The spa is 6mos. old. have changed water4 times since I have had it. Just tried another filter. I use Leisure time free chem system. Used bromine when we bought the spa. I imediately started itching so changed to free. Would chlorine be better. Thank You