Well, I spent the last seven days in the mountain of North Carolina. I left only expecting to be gone four, but my work schedule came out with extra days off so I just stayed.
Now, I usually don't worry about the pool as my Stenner pump adds chlorine every day and I toss a floater in the hot tub with a 1/4 puck to keep it clear.
I just got home to find that I forgot to put the puck in the hot tub and the pool timer jammed and has not been running for a few days. The hot tub is an interesting shade of green....
On the pool, I lucked out (I think). FC was still 1 when I found it and was still perfectly clear.
So, the hot tub is draining and I've added a bottle of bleach to bring the FC up. Another bottle after dark and on to the Overnight FC Loss Test (OCLT).