I was swimming in crystal clear and clean water yesterday, and woke up this morning shocked to see the pool green.
We had a severe storm last night, but I've read here that rain doesn't have much effect on chemistry.
Now to be honest, my FC got a little low when I checked yesterday morning (6.5 for CYA of 70). I did not add any CL last night cause I was out and figured going one day wouldn't make much difference. My CC has consistently been 0. ph has consistently been 7.5.
I didn't have time to take readings this morning as I was running late for work.
I most likely will need to do a SLAM, but I'm really disappointed and can't figure out how it would go from zero CC, no clouds of anything in pool, crystal clear to green with difficulty seeing floor drain in a matter of 12 hours.
I'd like to understand this. Any clues or guesses before I post tonights readings?
Can a pool turn green in a matter of a day or two where CL is a little below minimum range?