New spa owner here. Came home from 5 day trip to green murky water with an odor. Looks like inline chlorine "Frog @ease" ran out. I checked everything just before leaving and again when I discovered the issue. Looks like water balances are ok from what I can tell.

Tried adding some dual sanitizer/ shock from Home Depot ( only place open) last night but no change noted this morning.

I added a bit more shock today and a dose of clarifier. Should I just drain it? The water is about 2 months old. If so do I run something through system first? Thanks!