I opened my pool two weeks ago and the water was crystal clear until this past weekend. Algae started to takeover, so I brought the chlorine up to around 10. The pool turned green until about two days ago, now it appears to be slowly clearing up. I ordered the TF-100 kit and did my first test last night. Here are the results:
CYA > 100
Temp 71 F
I keep my Borates at around 50.
Here is an image from this morning. I would appreciate any insight into my readings. I have family in town this weekend and although the pool looks better than it did earlier this week, I am frustrated! I have this problem every year, but usually not until July/August - when the water temp gets above 90.