Posted 11/10/2013 18:51 (#3436336 - in reply to #3436195) Subject: RE: Concrete thickness for 12,000 upright tank.
We have a 6,000 b gallon vertical tank on an old 4" hog lot slab that was poured in the early '70s and I doubt it has any reinforcements in it. Tank has been there since 2001 with no problems.