Keeping fresh water in jerry cans

[Bogo]

On a side note, I was talking with a friend this weekend about how as kids we use to drink right out of streams and such with no ill effects. Were there fewer critters and such back then? Or did we, in our ignorance, build up an immunity?

Depending on where, likely yes and yes. There is now good evidence that kids who play out in the dirt have less allergies when they grow up.