Purely for clarification [pun intended], we have well water and a pressure pump that automatically kicks out if you try to fill a pool as it thinks there's a waterline break.
Our neighbors have city water @ much higher pressure and kindly allowed us to use their water and pay the $47 increase.
1. I don't want to bother the neighbors again unless absolutely necessary. [We just filled it last June]
2. I wanted to become educated in not only the proper way to start, but in what to do when things go awry.
So far, I believe I'm achieving the objectives, even though one wasn't intentional.

I would like to add, we're leaving on vacation for a few days, in a few days. Given the other numbers above and figuring I'll have the FC ~ 15 tonight [I added 1g bleach last night and will test when I get home], what can we do to best protect our efforts while we're gone?