cloudy water - new pool owner - help please!

lemanc

New member
Apr 24, 2024
1
Indiana
Pool Size
30000
Surface
Plaster
Chlorine
Liquid Chlorine
Hi, I appreciate this site and the help it's been to me. I'm a 2nd year pool owner. The first season was great and my water was clear throughout the season. This year, I missed that my FC dropped several days after open. The water turned a little cloudy and left me with ~5' of visibility.

After some reading, I attempted to SLAM about 10 days ago. I passed the CC and OCLT but the water has remained cloudy. I've attached my water test results. I wondered if my filter was to blame so I attempted to deep clean the sand but ended up needing to remove all of it, and I replaced it with glass media. The PSI reading on my filter has been constant since replacing the sand - around 13 PSI. It goes to 0 when I shut the filter off. I run my pump/filter 24/7. I've used some clarifier but that hasn't seem to have much of an effect. Today, the water is still cloudy but I am able to see the drain that is at a 9' depth. The store I have used is a bit shocked that the water is still cloudy given my chlorine levels. They are advising to try a flocculant once my FC drops. I've gathered from the forum that most would advise against trying that.

I think I've eliminated the possibility of having a filter issue. So, I think I either need to 1) be patient for my filter to work more or 2) do SLAM again and for longer, maybe assuming my CYA is 60. But before taking another step I thought I'd reach out for guidance from the community in case a more experienced pool owner spots something in my test results that I'm missing??? Also, when the SLAM instructions say you can swim if you can see the bottom of the pool, does that mean clearly? I can see my drain at the bottom but the water is still cloudy, so am wondering if the water is safe to swim in in the meantime. I was hoping to use the pool on Saturday for a b-day party.

Thank you!
 

Attachments

  • IMG_3403.jpg
    IMG_3403.jpg
    156.5 KB · Views: 9
flocculant
No Floc!

Continue to SLAM. Assume your CYA is 50. Taylor is more accurate. Stop going to the store. We got you!
There are no times on these, so I can't tell if you passed OCLT. None of them were passes day to day except 11 to 12th. Some nights were big gains.
One of your issues is that you are not testing and replacing often enough. Should be 3-4x per day or more, even up to every two hours.
Sand filters take the longest to clear.
If you can see a body at the bottom of the deep end, then it is clear enough to swim.

You Got This Good Luck Today GIF by MOODMAN