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Unless you decide to go with trichlor tabs. I was shocked at how fast our CYA climbed. We started with our new pool at 0 CYA. 2 weeks later it was 20, another 2 weeks it was 35, another 2 and it was 50, next 2 it had reached 60 and then we shut the stupid chlorinator off and went BBB. And this...

Thanks, I am shooting for 80 and will hold it there. The pool is only a month old, so there hasn't been much time for the TA to drop. Plus we've had around 5" of rain since it was completed, so there's been some dilution.

Added 2 pounds of baking soda yesterday and that raised the TA from 50 to 70 (tested today) with no measurable difference in PH. I aded a little less than a pound tonight and will check it again in 24 hours, but it certainly appears that it is doing the trick. Thanks again Richard!

That's great info and very helpful Richard, many thanks!!! As you guessed the PH has remained very stable. The TA has never been in the normal range though. We did a low PH startup for the first 2 weeks as recommended by the PB, so I was adding acid to keep the PH low. After the initial 2 weeks...

Hello all, we have a 12000 gallon free form in-ground gunite pool that is a little over a month old. Currently running a trichlor chlorinator and keeping an eye on CYA, will go to BBB eventually. Cartridge filter. The water has been crystal clear except for a couple of days after a huge storm...