Metals don't usually cause cloudiness, unless it's iron rust.
Regarding the sand, do you recall if the sand was in bags that were labeled "filter sand"? Pool stores have been known to sell cheap grades of sand blast sand instead.
Metals don't usually cause cloudiness, unless it's iron rust.
Regarding the sand, do you recall if the sand was in bags that were labeled "filter sand"? Pool stores have been known to sell cheap grades of sand blast sand instead.