I wouldn't throw the batch out, just bring it to a boil for a few minutes again. Then just cool it and pitch the yeast. That should evaporate the bleach, and if it didn't, you would be able to taste it right away, so no harm done.
BTW, why the heck are you puting bleach water into the blow off tube bucket? Aren't you overdoing it just a bit?
Last edited by Scooby_Brew; 08-03-2009 at 01:30 AM.