Well, gotta admit since I became a TFP convert last year, things sure have gotten easier. I was struggling with routine testing this year, and couldn't quite get my CYA level above 60 even after adding a 8lbs of powder over May & June. This weekend it was time to get serious again. So I spent the extra $$ on some liquid stabilizer yesterday & wahlah; CYA at 70. Still a little concern with TA at 100, but I am not sure if I need to be worried or just keep on keepin' on? Whaddya yall think?