our motorhome is in storage for period of time. usually I have 1/2 tank of fresh water. when we pull it out of storage for our next trip I want to flush and sanitize the tank. the question is what is the best way to do this? most folks use a few cups of chlorine bleach for a standard tank. but there seem to be growing reports from users that the bleach taste/odor sticks around for a long time. does anyone out there have a technique which does not use bleach and still has good results? your comments are welcome.