No, I don't see a reason to dump water. You need to clean it and that's bleach's job.

Yes we all feel very lucky that our Lisa is better and in remission and able to educate us and entertain us (I can't wait for the new puppy stories to start! Our recent "puppy" was 10 months old and was, on the day we got him, able to stand up and look in my 14 year old's eye...but he was still a puppy, as two pairs of my wife's expensive Manolas and my youngest's sneakers attest to!)

Carl