I'm adding 6 jugs (576oz) at a time and checking FC about a half hour afterwards. Pump is running fulltime. I'm using scum socks in the skimmer basket as there is a BUNCH of scum in it. Socks are filling/plugging maybe every 20 minutes or so.

I still don't get any more leaves or anything up from the bottom as I brush or use the basket across it.

I will test pH again right away.

Am I just experiencing a massive algae kill?