Yep, my pool was opened a few days ago and it's a lovely shade of green. :-)

This is the first year I've had a test kit showing TC and I was confused by the numbers. My FC is .5 and my TC is 5. Do I add bleach based onthe FC or the TC?

Other info - vinyl, paper cartridge, 22.5K gal; CYA = 100, FC = .5, TC = 5, pH = 7.8, Alk = 140, Hard = 180