So the pool has looked awesome this month. Sparkling water, easy maintenance, pure joy. We had a party last night with a ton of kids and adults and I expected to be dealing with increasing the FC level significantly to deal with the swimmer load. We also had about 1.5-2" of rain in the wee hours of the morning. That was enough to overflow our rain gutters, which poured directly into a flower bed, that emptied right into the pool.
I've got the pump running on high and treating with a shock level of bleach. I assume I should vacuum but it is so cloudy I can't see anything. I am going to also assume that the particulate matter in the pool as skewed the CYA test since it was 60 2 days ago and now measures 100 with no additions.
CYA-60 (or 100 if today's test is correct)