wrote on 28 March 2009
at
2:41 pm
Dear dumpman, Thanks for quick delivery, I was part of the local civil defence organisation in Guernsey for many years, and although we dont have bunkers like this one, we used the ones the germans kindly built during wwII. The small pipe to the left of the big pipe was for a Bomb power indicator which was a baffle plate attached to the pipe with a pressure guage mountd to the wall via another pipe this gave the overpressure that a bomb would give when it exploded, this could be used to work out the bombs size, also the probe for checking the radiation levels outside went up inside the big pipe with the flange. The room by the bottom of the entry shaft was for a chemical toilet (elsan) and other kit, the cables could be attached to a 12v generator which would power the batteries for the post's radio and small light circuit. I have never seen a monitoring post in the flesh, but did all the training on monitoring and fallout predition etc.