Hi, my name is ***** ***** I'll be glad to try and help you figure this out! I just need to get a little information from you first. What's the working pressure on the filter? It should be somewhere between 18 and 22 psi. If it's lower than that, you're not getting very good flow to the filter, which means it's going to take much longer to filter out that cloudiness.
The cloudiness might be a result of the high alkalinity, especially if your calcium hardness level is high, also. Would you be able to give me the results of a water test? I'm curious about the sanitizer (chlorine, bromine or salt?), the current pH, alkalinity, calcium hardness and stabilizer (cyanuric acid) level. Knowing the levels of these might help to narrow down what's causing the problem.
In the meantime, if the filter pressure is good, then you might consider using either a clarifier or a flocculant to get rid of the cloudiness. I'd suggest a clarifier, since you can add that to the pool and then let the filter do the work. Just make sure to watch the pressure on the filter, since you'll definitely have to backwash soon after using a clarifier. If you use a flocculant, you'll have to vacuum out the particulate that's causing the cloudiness after it settles to the bottom.
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