Thx man !
I've got the final pic sans lable for yah at the end of this post.
-------
Heh.......calibrated spacers indeed.......

..those two tanks were not square to each other at all......I've removed all the shims , it looks good , close as I could get probably.
-------
@ death hawk :
Yea , all these kegs etc. carry a lable like that....The one yer looking at I bought from Wildrose breweries here in Calgary......the inner tank I got from a metal recycler...pepsi has the lable on that one , the big keg I have ( also from the recycler) is from 'Interbrew' (aka Heineken ) .......
--------
@ 3 of 7 ;
Hehe.
I would have thought the construction of all the resevoirs from keg's or half kegs , would have clued you in , but good eye man ! that's a 'Big Rock Grasshopper' beer cap.hehehhe.
---------
I have finished the solvent recovery tank , AKA : 'Dry Ice cooled , fast flow solvent condenser'..........
-----------