slight cloudiness

Hi There, Introductions: We're a family in NZ with a small vinyl pool since we moved about 5 years ago. Took a while but I had come to an understanding with the pool, the pH tended to go up and Alkalinity tended to go down absent treatment...so adding dry acid and some baking soda every so...

Greetings! I've appreciated all the great info on this site for ~4 years now.... kudos to everyone! I'm wondering what the cause(s) may be for recurring slight cloudiness. This happens each summer here in Florida (pool temp in the 80s). I've SLAMed many times, adhering to the SLAM...

We had an in ground pool installed last year. 22,000 gal, lagoon shape, vinyl, sand filter (2 cups DE), VS pump, Taylor test kit, central NC. Water chemistry and clarity was great last year. This year was great from opening until about a week ago. I have some slight cloudiness in the deep end...