Top Part here is about the replacement parts! this last part was pertaining to the oil tanks ,(revised version) No, Tanks are not bad at all, freaking genius if you ask me(healthstone kinda rock in tank), but they seem to work amazing with PUre GOld, but give 50/50 on the thicker waxes 50% of people its working great with thicker stuff, and the other 50% its finicky with certain budders and waxes!!!! G, You think you might be able to incorporate the nail cart you had in development into a tank,a thin walled SS or Titanium kinda nail tank lol lol lol hahahahah Torchless!!!!!!!! With the Herc dreaming up ideas & possibilities is endless with its modular design !!!!