My fuel stock brewed before moving house is running out, so time to get on with it!
Bund (aka manky spill area) assembled and awaiting two-part latex... and I think I'll hang some plastic sheets to catch splashes and redirect into the bund too (judging by the state of the outbuilding walls where I used to live, a good idea!)
Bund would be 540l but for the fact it slopes towards the front of the garage, still - enough to catch a batch if something leaks