I’m trying to fix a cloudy pool. I’m in North Louisiana. I have an Intex 48” x 18’ (approx. 5455 gallons) AG pool with a SWG and an Intex filter pump(cs8110) for the next size up pool (the old one quit and we got the larger size). This is the third year for this pool. I opened it in April and have been running the filter almost non-stop for a month (there was a 2 week period we were out of town and covered the pool, but the total time I’ve been running the pump has still been about a month for this season). There was a lot of Algae to begin with so I’m on my sixth filter. I wash them daily with a sprayer on the water hose and use a new one when I think they aren’t working effectively any more. I didn’t know test strips were unreliable until this site so that was my testing method. I had never used CA (in the first twoyears) and the strips indicated that it was low. I used one entire bag of HTH Salt Pool Care with a 76% CA content with no result in the change on the strip. I bought HTH stabilizer and conditioner with a 96% CA content and used the approx. 9oz dose once and still nothing on the strip. I added ph minus to bring the ph to the 7.5 range (on the strip). I added bleach daily to keep the level high enough to hopefully kill the algae and contaminants (but I had no way to check this with the strip). I planned to do this until the water became clear, but it never did. I found this site bought a HTH 6 way test kit and got these results:
PH – 7.5
Alkalinity – 10 (multiplied by 10 so 100)
Hardness – 5 (multiplied by 10 so 50)
CA – 65 (but knowing how much I put in, I don’t believe it)
I tried to do an overnight FC loss test last night. It was the darkest color on my test kit which is 5. This morning it was still 5.
My theory was that I hadn’t shocked it enough. I don’t understand the Chlorine/CYA chart. I don’t believe my test kit will show an FC of anything higher than 5. So how will I know when I’ve done enough shocking to rule out that as the cause of the cloudyness?