trader_4 wrote, on Fri, 04 Jul 2014 09:13:51 -0700:

In fairness to Danny, from the original post, it's obvious it's not
a one time, 1000 gallon problem. CA is in a long term drought, his wells
are running dry and so are his neighbors. The idea was to see if they
could come up with some lower cost solution to span months.

By way of comparison, here are some shots of the neighbor's water
tank systems.

Mine seems to be unique in not having a spare tank or two for
the fire department.

Here is a four-tank setup, for a very old house, built sometime in
the sixties, which also seems to have an unearthed but empty
underground steel tank.
https://c2.staticflickr.com/4/3890/1...af927f95_b.jpg

Here is a three-tank setup, with, oddly, the wharf hydrant *above*
the bottom of the water tank (the only one set up that way that
I know of):
https://c1.staticflickr.com/3/2932/1...ee0ae293_b.jpg

And, here's a steel tank setup, mine being the only other steel
tanks, which has that curious set of swirls on the side of
the middle tank, just like mine does!
https://c2.staticflickr.com/4/3879/1...3a8b91b8_b.jpg

What do you think is causing these huge semicircular swirls?