I take my waters to the water in a garden wagon. The one like the garden centers use. Then i can clean them out before I fill them. any water that would slosh out falls through the wire mesh of the wagon and I stay dry and fill 3 waters at a time. My main barn keeps warm enough just from the body heat of my chickens that I don't have to heat the waters,ever when it gets below 0. Unless i forget to close the window.