I put a glug of bleach into the bucket that I run my blow-off hoses into. I have done this quite a few times before so that the standing water won't grow things. (I've tried to use Starsan before but it bubbled into foam and ran out of the bucket.) What is different this time is that I have a new chest freezer and I didn't think about the confined space for the bleach vapors. Even without spilling liquid, it bleached the color out of the towel the bucket was sitting on. I don't have a very tight seal on my plastic fermentation buckets, so I am hoping the positive CO2 pressure would have kept out any chlorine. Does anyone think that this batch stands a chance of survival?