I put this under The Tankers/Tenders Group but thought it was appropriate that it went here as well. 

In our area (northern Wisconsin) and on our department the first out tender (2200 Gal) will always roll back into the village and catch a hydrant for the first load of water at least. Usually by the time they get back to scene m/a and our other three tenders have arrived and the fill site has been established. Some of our M/a Depts will almost never fill out of a static water source E.g Rivers Lakes ponds.... they will only use hydrants. What do you Folks do?