Got a big Vat. What used for?

[Creighton]

Hauled this home from a tree thicket at the neighbors. It will be my rain water collection system.
Wondering if anyone knows what is was for originally. 4'5" tall with a 2'6" aluminum tub inside.
Thanks!
Creighton

[mznb1u]

Part of a still?  Got no clue on the vat but the scale looks similar to those used at river gaging stations to measure the level of the river.

  Tim

[collecture]

Wash tub? - missing top/ringer??

[Creighton]

Was hoping it would be part of a still but no signs of heating from below and no coils.
Back after fire but before the wheel I did land survey stuff. That's an expandable 25' carbon fiber pole marked in 10 ths of a foot.
Used last to knock the snow off the Dish antenna :-).

I'm thinking wash tub or dry cleaning. There was was a hinged lid at some point.

Thanks all!
Creighton

[Jacko1070]

Looks like an old chicken feed silo...............