Mustmaker wrote:

from turning. I used a couple of ratcheting carge straps for the hold back.

I used a chain and a loadbinder. See
http://www.metalworking.com/dropbox/_2000_retired_files/ANCHOR.TXT

The "Sampson post" is bolted to the floor. The chain runs over the tank
and to a fitting at the bottom of the post. The load binder puts lots
of tension on the chain and friction does the rest.

Ted