Yeah, you are right - my sonotube barrels were simply toilet roll tube offcuts painted with chintzy epoxy blue paint (and badly at that).
I might have some dairy-grade stainless barrels turned up for me. Know anyone that works with supreme erotica udderly ridiculous cheese grade stainless?
(funny, being the grandson of a massive dairy farmer here in QLD (just a few thousand hectares...a
few...], the stainless they used was no better than the stainless everyone else used. It must be Victorian Grade stainless that's superior due to the corrosive nature of the BS floating in the air)
UPDATE: my Tak diagonal just came in to complete the enchilada, so we can't deny Stefan and Adrian entry now