Pesach Questions

I bought a couple of the instant Pesadik mashed potatoes and soups that come in cups for the days we are out of the house. Just add boiling water. But it occurred to me that if I had to kasher my urn, is it OK to accept boiling water wherever we might find it on the road?

It's not a good idea to use hot water on the road, by which I assume you mean the kind of place that sells coffee and other snacks . On the other hand, I wouldn't worry about one of those sink systems that produces boiled water but which obviously does not come into contact with food.