In reply to Pietrach:
I think this is it, ''Personally'' It comes down to risk we accept I drink un-treted cows/ Goat Milk If available and will eat the same cheese.
If we are not got by the wash cycle or spin dryer we all get hung on on the line in the end
I have not knowingly suffered any ills from them of hill or fell water,
I understand what your saying about the flatter parts, though it is seeming to be a trend not to drink mountain water also, I love my collapsible cup, and the look on the faces of some as I drink &drink.
PS A good clean out with the sh1ts, is no harm.
I have even drank water from the spring by the top on Ben Nevis on a July evening ----- tasted fine but must have bean 20% piss
Post edited at 16:50