No splash-less bleach! Just the plain 6% no-scent no-additive stuff, please! (For your pool's sake)

And . . .
"Do this:
#1 - Go get a cheap OTO / phenol red testkit; you'll need it for testing till the K2006 arrives. It will allow you to test higher levels than 'guess-strips' or other kits."

Guess strips really, really don't count. Please.

Then, test the chlorine with the OTO, and the pH with the distilled dilution.