Kegs may only cost 3x a cube but then you need the rest of the setup to dispense. Cubes are fine for cask conditioning and dispensing and you get a free cube if you buy a FWK.NickB said:Holy ****. Someone is going to cop a hell of a blast in their face following the above advice. A keg costs maybe 2.5 - 3x a cube. Do the maths. FFS, don't endanger yourselves for cheap beer! Sheesh!
Even if a cube was over primed it would just split and cause a bit of a mess, you wouldn’t cop a blast in the face unless you happened to be kissing it when it burst.
As far as I am aware you can’t get the UK homebrew plastic pressure casks here so I can’t think of a better alternative.