Drumroll please...

Ok, the tap water showed trace amounts of chlorine [~<.5 actually], so I got a glass of distilled (we had some on-hand already; my dh keeps a humidor [sp?]).
First I just tested the pool water, as usual:
pH: 7.4-7.6 (7.5?)
FC: <.5 (YAY!!! It's actually showing SOMETHING now...)
TC: >.5 (but less than 1)

Then, pool water to the half-way mark (4.5) + distilled to the fill line...
FC: ZERO
TC: <.5

Then, pool water to the lowest mark (1.8) + distilled water to the fill line...
FC: ZERO
TC: ZERO

So, I guess we're ok.
Plus, the pool is showing even more improvement, so it's definitely doing something, despite the low readings... I'm glad there is FINALLY some pink in the test results!!

Ok, I am DONE. Gonna hit the sack... G'night!