The first thing to do would be to test for the Total Alkalinity. If it is not within the 60-120 range the water will be cloudy and nothing will clear it up except adjusting it.
Another thing would be to chemically clean the filter. Baquacil recommends that you chemically clean it at least once a month, if the filter is clogged up it could cause the pool to be cloudy.
The last resort would be to add the Flocculant.