Speaking of holding tanks, how long can I store water in a tank? If I was to get a food grade drum, haul water from the city water at work, fill the drum. How long could I leave it before it was bad? It would be either outside where the Iowa temperature swings or inside the garage, a bit more stable but still could get to 80*F +.
That would not be the ultimate solution, but would be a start in the right direction.
I appreciate all of the discussion here, very helpful.