Godspeed wrote:
....

... He recommended a brand new non-steel tank. Sure. It's not his money.
That's twenty grand.

...

That's almost 10X an estimate for a tank alone I'd think; at least if it
doesn't have to be potable (but even there I'm sure their available for
much less than $20k @ 5000 gal.

Assuming you're in CA from the fire protection requirement, here's one
link that might be of some interest--they have black poly from roughly
the $2k range.

http://www.watertanks.com/contact.asp

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