>I opened my 14000 gal Intex aboveground "green" pool to a nasty FC = 0, pH = 8.0 and CYA = 50. I use Taylor-2006 kit. I shocked it to a 26 and it started clearing up and had a hazy blue. On 3/17 the FC was a 17 and cya 40. I have kept pump working a lot and test/adjusted chemicals till today's test results, which were:
FC = 6.0 (a day after shocking to a 12 with bleach according to the pool calculator)
CC = 0.5
pH = 7.2
ALk = 80
CAL = 130
CYA = zero????
I was shocked at the last one and retested it. How can the CYA drop to a zero? I can understand it being 40 vs 50 due to the algae and **** in their the first test. I have read on some sites about other owners saying CYA levels can drop to zero in the spring due to chemical reactions and using real high levels of bleach, etc. One site even said algae eat acids. I don't understand all that. Can someone offer some concrete simple explanation on what is going on with my CYA level?
FYI. My pool is cloudy blue. I use cartridge filters. Recently I added CaCl2 to inc Ca hardness and some baking soda to get pH up from 7.0, but it got cloudy. Now I read on a site to avoid adding those at the same time. oops. ****. I know Calcium hardness doesn't matter for vinyl, but the pool never shows as balanced in the calculator if I don't get that up. I had some chemicals from last year so I used them, but it seems to be a mistake. Another goof was that I read that clarifier and Algacide can cause cloudy water too.?? I used those not long ago. oops. today I added 26 oz of baking soda and 16 oz of borax to raise the alkalinity and pH a little - hopefully pH to 7.4 and Alk to 90. I also added an old bag of dichlor and 10 oz of solid stabilizer. If what I have read is correct, the dichlor will increase CYA by 9 and the 10 oz stabilizer will inc. it by 5. That will only be 15, but I was hesitant to do too much. I don't want to get the CYA too high.
Here are some basic questions if you will please assist.
1. What CYA level would you suggest for a vinyl aboveground pool in Ala? I have read 40 -50 to avoid having to add so much bleach. I was thinking 50.
2. If my stabilizer was zero as it showed, why was my FC at 6.0 24 hrs after shocking to a 12? Wouldn't it be near zero on a warm 80 degree day here in Alabama? What is your take on my chemicals, CYA, and cloudy issue?
3. Should I use the old dichlor shock to get the CYA back up quickly to the needed level? Or would you use the solid stabilizer in the skimmer?
4. Would you use trichlor pucks to raise the CYA for a while? (I still have the pucks and dichlor from before I discovered the BBB method here at the end of last year)
5. How many days does it take to get the CYA to dissolve if it is in the tablet or solid bottle form and get an accurate test result? I have heard to wait up to a week after adding to see where the CYA ends up.
6. How much does one trichlor tablet raise FC and CYA per 10000 gal etc. for future reference? Such as vacations...
7. What levels would you recommend I shoot for and which chemicals to add to get my pool clear? Hopefully getting the CYA right and using the right amount of bleach each day and running the filter all the time will get me cleared up?