Are you seeing any appreciable rise in filter pressure to indicate that your filter is removing particles? Having to backwash the filter at all? Good flow from return(s)?
I realize you are using the same water as last year, but has the well water been tested for metals recently? Even a pool store test for metals, though likely not all that accurate, would be a start. I have a well on my property as well as municipal and I have it tested every other year for metals and other contaminants. Most laboratories will do what is usually called a water suitability test for <$50 which will give you accurate results on metals as well. I'd do that if there is any indication of metals from a pool store test. Example:
Water Analysis Price List Metals would not easily explain the cloudiness, only the coloration. Cloudiness points to a filtration/flow issue.