Note to DC Josh

DC Josh,
For some reason your website will not take comments.  It's not that I'm not trying, it either says it doesn't recognize my Open ID which is this blog address or it just keeps redirecting it to another copy the letters page.  So I'm sending it this way.  Once you read it let me know and I'll remove the post. 
Sorry everyone else for sending a message this way.
My comment was to remember to include your water heater when figuring out how much water you have on hand.  Between that and the two toilet tanks we have 60 gallons of water without doing anything extra. 
Stay safe in your hot and humid weather.