Plaster 3 years old
DTP test kit
All Chemistry is good.
three weeks ago I treated the pool for stains with jacks magic #2 and Magenta Stuff. Stains are gone, pool looks good. but now i have cloudy water. My FC reading is 1.5 and my CC is 9+. Jack said chlorine reading would be off (using regents to test) so for 3 weeks I let it go. 2 weeks later my pool began to cloud. I thought it was dust so i let it settle for 3 days. It looked better. I vacuumed to filter, cleaned filter. After 4 people swam for a few hours pool was even cloudier. Jacks tech said add 2 lbs of non-chlorine shock. My FC did not move. I read the threads here about overcoming CC by reaching breakpoint. but that would be 10-12 gallons (rough math) of 8.25% bleach. Another thread by the same person said just bring it to 15 and it should work. I added 3 gallons of 8.25% bleach at 7PM to hit 20 FC and 4 hours later My FC was only 3. So between the 2 lbs of NON-Chlorine and 3 gallons of bleach not much happened. the next morning called tech. He said shock with 11lbs of NON-Chlorine. Why Non? Said that if you use chlorine and don't hit breakpoint you will increase your CC. Sounded good so I brought a sample (same morning) to the store (sorry but I wanted a second opinion) and I told her my issue. I needed to know the CC. She said I have no CC and FC is 2. Suggested replace 2 year old filter, clean every day, see results in a week. I had a new filter so I put it on. That's where I'm at now.
I have used the test kit for 1 season. I know how to use it. Unsure why my CC reading is showing 9 and theirs does not see any. I have added bleach to pool before. Adding that much bleach should have moved my FC more than that. I am puzzled. I want to discuss this with you guys and see if we can figure this out.
Thank you in advance.