Homer, we have good water here and I rinse off with cool water , shake off gently the utensils. For the carboys I leave just a tiny amount of water in, (@ 1 ounce) so when I add my Potassium Metabisulfite it can disolve. It does take a quick lift of the carboy and then angle to get the bit of water up over the bottom of the carboy lip to the center.
Same goes for the sorbate.
There are people who will not rinse off. It's how you were taught and if you have had problems or expect them with your water. Well water I would not rinse off but allow everything to dry awhile after spraying.