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Milky Cloudy Water After Shocking


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Hey y'all!

I am a frequent reader but decided to post my question here as other threads did not address it. Here it goes:

I had an algae bloom post opening. I was travelling and FC level dropped. To me, it looked like mustard algae. I shocked it with 6 gallons of concentrated liquid chlorine. I also added algaecide because I had heard that mustard algae are quite resistant to chlorine. After a week of processing, brushing and vacuuming, I have no sign of algae but the pool is milky white. My test results are:

Pool: 25k gallons

FC: Still very high, literally off-the-chart

Total Alk: 110

PH: 7.4

CYA: 60

Hardiness: 70 (going to increase after the pool clears)

During the shocking process, I let my sand filter run 24x7 and back-washed twice a week. Pressure wouldn't build up too high, so didn't feel like I had to backwash more frequently.

Since the pool was not clearing, I added this clarifier. I have to admit that I put 2x the amount I was supposed to, by mistake. It's been over two days now but it's not clear yet.

I bought the house last year and am not sure when was the last time pool water and filter sand were replaced.

My last option here is to flock it if it doesn't clear up. I decided to ask the group for input before moving forward.

Thanks!

This is how it looks today.

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