C-Brite is supposedly a no-rinse sanitizer. That being said, I don't trust it. Don't listen to me, I just started brewing - but after doing a sanitization and brief soak at the suggested strength of 0.8oz/5 gal, it still stank to high heaven of bleach. Of the two buckets I did, one still reeked a day later and the other one reeked and had crystallized sanitizer stuck in the bottom.
The moral of the story is that I've been using C-Brite, then rinsing it out 4 times with hot tapwater.