I found info that cloudy water can be caused by improper levels of chlorine, imbalanced pH and alkalinity, very high calcium hardness (CH) levels, faulty or clogged filter, early stages of algae, ammonia, and debris.
So you can try:
1. Balance free chlorine (FC) levels. If FC is low, you need to shock your swimming pool to fix cloudy water and kill bacteria before you get algae or ammonia in your pool.
2. Eliminate ammonia and get rid of young algae.
3. Monitor and balance pH and TA levels.
4. Correct calcium hardness (CH) levels.
5. Remove foreign particles and