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Thanks Dave. I am going to bite the bullet and do another partial drain/refill next week and hopefully get the CYA down. Other than that, my pool is looking great thanks to this site. :-D

I'm using a TF100 test kit. The FC is still falling from when I shocked it so I should've have written that I was still letting the FC fall to target range. I live in SW Florida, so draining/re-filling a pool is expensive and I've done it twice this month already to about 80% refill both times...

I have been using the BBB method for several weeks now and that, coupled with this site, have given me clear pool water for the first time in a long time. I have to remember to take a photo to post soon :) Anyway, I have high CYA levels (even after draining the pool to 80% twice) so my results...

Thanks - I'll let the FC levels go down to the levels recommended based on my CYA. In the meantime, I'll enjoy the warm, CLEAR water :-D

Just received the T100 test kit (hooray) so now I have an accurate FC reading. Some background - have partially (70%) drained and refilled the pool twice this month due to very high CYA levels (bad advice at the pool store). Anyway, went to the BBB method with the help of this great site and...

Thanks again Jason. I am going to order a better test kit (probably the one so highly recommended on this site) so I can feel more confident about my test results. Pool is looking really clear (just the little white flakes that are only visible floating around by the light at night) and this...

I am getting the hang of the testing process since I am doing it twice a day :wink: Tested the pool again last night and had relatively the same numbers with what seemed like normal chlorine loss for a day in the Florida sun. FC = 8/10 TC = 8/10 PH = 7.2 TA <200 CH = 200 to 250 CYA = 80...

Thanks a bunch - I'm enjoying seeing my clear pool and spending a fraction of the money :-D

When I asked at the pool store about using liquid chlorine (which they do sell and it's about the same price as liquid bleach if you factor in the different concentrations), they told me I shouldn't use liquid chlorine because eventually my total dissolved solids would build up and I'd have to...

Thanks Jason. Tested again this morning: FC = 10/12 TC = 10/12 PH = 7.2 TA <200 CH = 200 to 250 CYA = 80 Not sure what made the CH go down since I haven't added any water. Maybe I just need to get used to testing :? Anyway, based on these numbers should I keep the FC at 10 and just work...

Hi Jason, Thanks for the reply. What are the signs of calcium scaling? I'm going to search the site as I'm sure this has already been addressed :) I will try to get the PH to around 7.2 and then aerate to try and reduce the TA as suggested in one of the posts. Due to the fact that my CYA...

Just re-tested and double-checked all my chemicals and it finally turned light pinkish at about 30 drops :shock: That means my TA is well over 300!!! Double-checked my FC and TC and both are at approx. 7. If I add 6% liquid chlorine tonight to bring the FC up to about 10 should I add acid...

After 40 drops I just gave up because it wasn't turning! What is exceptionally carbonated???

Re: Updated Readings Here are the readings as of 5:30 pm today: TA = >400 FC = 10 TC = 10 CC = 0 PH = 7.5 CH = 400 CYA = 80 Pool water is clear and about 78 degrees. 12,500 gallons IG concrete pool with cartridge filter currently running 24/7 (although going back to 8-10 hours/daily) Pool...

Thanks Jason. When I get home from work this afternoon I will check the FC and see where it's at. I tested it this morning before the sun was up and it was 15 (from all the shocking yesterday and overnight). Your suggestion will help me determine if my CYA results are accurate. As of this...

Sorry about that - I meant "well below the 100 mark" as the tube in the TF100 tube kit shows. The second reading required more water to obscure the black dot, but it was just at the 100 line rather than being well below. Is it possible that two 80% drain/re-fills this week are still showing...

Thanks John. I did take a sample to the pool store after the first 80% drain/re-fill this week and they said they said the CYA level was still at 100 (they said they couldn't test any higher than that), so when I did the second 80% drain/refill I didn't bother to bring it back, just used my...

First, I'd like to thank this board for helping me make the switch to BBB. I have had to drain and refill my pool 3 times this year due to high CYA levels because of bad advice at the pool store. This last time I had to drain and re-fill 80% of the water twice in a week to get the CYA level...