Watch this space!!! I have 3 tanks on the go, one in baby size, one in mummy size and one in the daddy size!
Are you going to put porridge in them?
There was a thread on HAMB I think where someone made a plywood sided, poly lined tank, to derust a full vehicle ladder chassis off a jeep or something ?
From memory he used a DC Arc welder as the power source and a frame over the top with a load of dangling re-bar as anodes
Whilst it seems re-bar seems to be the choice of sacrificial anodes, surely a brake disc has a greater surface area and as such can actually make it a more efficient process, and a large worn out brake disc is easier to come by and cheaper