On Wed, 13 Jan 2010 09:27:33 -0600, Steve Barker wrote:

Plastic water tanks are not that expensive.

You're right. I was hoping to "repair" the tank but the advice to check the
price of new is apropos. A new "plastic" tank seems to be about $2,000.

A new "5,000 Gallon Fresh Water Poly Tank" is $2,238.60 he
http://www.watertanks.com/products/0005-045.asp
Diameter:102 inches; Height:152 inches; Weight:875 pounds;

Here's a heavier "5000 Gallon Polyethylene Fresh Water Tank" for $2,000:
http://www.gototanks.com/SN5000-Gall...ater-Tank.aspx
Diameter:102 inches; Height:153 inches; Weight:1,200 lbs.

This low profile "5000 Gallon Black Water Tank" goes for $1,775:
http://www.tank-depot.com/productdet...001IW&ref=base
Diameter:141 inches; Height:86 inches; Weight:879 lbs.

I wonder how long plastic tanks last compared to steel?