Re the sharp eyed gents (John & Shane):
Yes the Engel is always full, I keep it set at around 2 - 3 degrees because I like my drinks cold - um, I mean you have to keep the compressor going to keep the seals from drying out, losing gas, refrigerant system running properly, etc.
And it IS very handy there in the lounge room.
And yes - it was Starship Troopers - damn good eye, well done!
Cheers !
