First of, we keep our water system in the trailer immaculate. If we have water from home in the tank we do drink it, if we fill from a know municipal system we drink it, first time we fill the tank from any other source we switch to bottled water and stay on bottled water until after we have sanitized the system.
A few years ago on a cross country trip we were not quite as careful and I picked up a waterborne bug, took two years to get rid of it and believe me it is not much fun having to live next to a washroom.
So, unless you KNOW that the water is safe, don't drink it.
Heinrich and Elly
2010 Prime Time Tracer 205M
2010 Dodge Dakota Crewcab 4.7 l