The larger of the 2 pools I look after has clear water but it is dull/hazy, here are my latest test results. I am treating it exactly as I do my own pool but not sure why I have this type of "cloudiness". When I refilled the pool I did a deep clean of the sand filter before putting it back in operation, any advice much appreciated. The water was sparkling clear for the first week...
FC 3.8 (ADDED BLEACH AS PER THE CALCULATOR)