Here’s the dumb question for the evening. Been maintaining pool balance with tfp procedures for the last couple of yeasts, no issues. I live in north ga and we’ve been in pretty much a drought for the last month or so. It’s starting to cool off here, and with the cooler nights, the pool is around 74 degrees. I noticed today some green on my steps. Brushes off no problem, but I’m not even sure how this is possible. CYA is at 35, call it 40, and I get my chlorine in check all the time. Never let it get below 3-4. Most times, I keep it around 5-6. I’ve also noticed it’s starting to catch more debris I’m assuming with the leaves starting to fall so I run my dolphin about every other day. Is it possible this is something g other than algae.