FC was 19 yesterday. I left my dad in charge of the pool for the week. To play it safe I told him to put two pucks in each of the skimmers. Usually works fine when I’m away. CYA has been at 100 so I’ve been keep FC a bit higher using pool math but not 19! Now, my dad did fill up the pool on Thursday with a little too much water for several hours and then emptied some out. Could that have something to do with it? PH is typically around 7.6 but yesterday it was 7.4. I pulled the pucks out—what was left. Assuming it drops a bit today, is it safe to swim in FC of over 10?
