[Private_collector]

Yeah David, i'll need to make some sort of way to get rid of gas buildup. Haven't given any thought yet to how this will happen, but would prefer something that does not require electricity. There won't be power available, apart from solar. I have a spare rotary vent somewhere here that is meant to go on a roof and vent heat & moisture. That would work well.

I'm lucky to live rural and have a decent size piece of land, so very few neighbours to ponder exactly what the tank is for. Some years ago we had a couple of serial killers here in Australia that were putting the victims bodies into plastic drums filled with an acid, in an attempt to disolve the remains. I hope no one thinks my tank is for the same thing!