Ok - so the TF100 came in the mail today, and I ran the tests. Here's what I found in the green monster out back...
Chlorine - 0
TA - 30
Calcium - 50
PH - 8.2
CYA - essentially zero (full tube and dot still very visible)
So (once I get the new pump I ordered today), the question is, where do I start?
Do I shock the pool focusing only on chlorine until I get that level up (and the algae cleared), or do I tackle chlorine and CYA at the same time?