With night temperatures in the high 20's and daytime temps in the 40-50's, I can still use the cistern that catches water from the roof of the barn. Because the land slopes away from the barnyard and cistern, I disconnect the hose to let it drain nightly. This mild autumn watering set up is a real time saver over the winter routine of unrolling the hose, connecting and filling troughs, buckets and waterfowl "ponds", draining the hose by lifting it over the fence, recoiling it and carrying it back into the barn. In the winter I could probably rely on the slope of the land to drain the hose but the memory of dragging a heavy frozen hose into the house to thaw has taught me to be overly thorough in draining all the water.