Why glove? Sensitive to S/W? Not sure about that particular glove but have experienceds such mishap w/ one that has powdery coating. No more glove for me.
Extra Carbon was good move.
Always had reseve running (24/7/365) for any tank for any possible emergency. Aging water also help w/ removing chlorine.
Now, many cities are adding Chloramine (could be F/T or P/T addition) which wont dissipate by againg and very toxic to fish/inverts, thus may have to use simple dechlorinator (please no overuse) or even better, use RO/DI.
If RO/DI is not possible, look into Tap Water Filter (used to be call Tap Water Purifier) by API which can remove most toxins, including chlorine/chloramine along with minerals without spending mega buck thus no need for dechlorinato (personally never cared for slimy/viscous additive for reef).
Check your local water supplier for analysis on tap. As long as tap is not too hard, this purifier should last for while. If possible, hook up extra PH for more turbulence.
Hope all goes well!