Hello Richard,
Thanks for the warm welcome.
I did the practical bit of the Backwoodsman’s Badge at Buckmore Park between Maidstone and Rochester. After we had been tested on the stuff we had previously learnt we were given, a pigeon – to cook in clay, told to go of and make a shelter AND ….given a Billy can of very dirty water.
Obviously, the water will be boiled after filtering. So…. Ideally this is best made by a stream with sand and pebbles but it works OK if you improvise. Get a can, the larger the better and punch small holes in the bottom like a watering-cane rose. Prepare a fire and make charcoal. Collect, as available, gravel and pebbles of different sizes and sand. The can container is then filled with layers of the above.
Gravel or small pebbles at the bottom followed by sand (if you can get it) then charcoal, followed by layers of pebbles - small on the charcoal and biggest right at the very top. At least half of the can (middle section) should have charcoal.
The water goes in the top and the lumps of stick etc get blocked by the big pebbles - and smaller lumps blocked by the smaller pebbles - onward down to the charcoal, which does the main purifying. The sand does the final filtering. Repeat filtering until you are happy and then boil according to what you feel is required. The result should be clear and safe water. It probably won’t taste very good and will be ‘flat’. I know it works because to get my Backwoodsman badge I had to drink the lot! The normal cautions apply about being careful about where you get your water from - and long enough boiling time.
This may be in Scouting for Boys or other old scout books. Hope you find it interesting.
I haven’t rounded up the snails yet – but I do seem to have a lot. They crunch under foot late at night.
Best wishes,
Peewit