First off, you need your own test kit. We recommend the Taylor Technologies K-2006 and K-2006C test kit. And you need to do your own testing.
Secondly, your pH is high so you need to add some acid.
Your CYA/Stabilizer level is a bit low.
BUT, with 17,000 gallons and a CYA level under 30 I would immediately add 2 1/2 gallons of 8.25% liquid bleach. Wait 1 to 2 hours and then test your chlorine level. If it's 0 you are going to have to add ALOT of bleach to your pool, until you get a reading of 12ppm of Free Chlorine.
Given your low CYA, high pH and low FC, I would (if it were me) fill a floater with Tri-Chlor tablets. Trichlor adds chlorine, CYA (for every 10ppm of chlorine it add 6 ppm of CYA), and is very acid and will bring down your pH.
You can easily do the same by shocking with bleach, adding CYA powder, and using Muriatic Acid or Dry Acid to lower pH.
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