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Why Is My Pool Blue But Cloudy?
When Chemistry Isn’t the Whole Problem
This commercial pool had turned slightly green after a problem with the chlorination system. Once the chlorine issue was corrected and the pool was treated, the green disappeared — but the water remained extremely cloudy.
At that point, simply adding more chemicals wasn't going to solve the underlying problem.
The pool was blue, but the filtration system wasn't doing its job. After troubleshooting the system, we found a clog restricting filtration. Until that restriction was corrected, the suspended material in the water had nowhere to go.
It's a good example of something we see often in pool care: water chemistry and equipment have to work together. Clear water doesn't come from chemicals alone.
What We Found
The water was telling us something wasn't right.
The water was telling us something wasn't right.
The water was telling us something wasn't right.
After the chlorination problem was corrected, the pool responded—the green was gone—but the expected improvement in clarity wasn't happening.
Rather than continuing to add treatment after treatment, we turned our attention to the filtration system. Troubleshooting revealed a clog that was restricting filtration and preventing the system from properly clearing the water.
Once you know the cause, you can fix the actual problem instead of continuing to treat the symptom.
The water was telling us something wasn't right.
The water was telling us something wasn't right.