HomeGuy wrote, on Fri, 27 Jun 2014 21:48:00 -0400:

Regardless how many of them cooperate in a bulk water purchase, where
are each of them going to store the water?

Presumably if you normally have well water, you won't necessarily need
or have a storage tank along the lines of a few hundred gallons if the
water is (or was) always available.

Everyone has 10,000 or 15,000 gallon tanks of water. Most have two
or three large tanks. I don't think anyone doesn't have a tank or three.

So, that's where the water would be stored.