Hood protects drinking area for better sanitation. The cover and inside body lift off for easy cleaning and lifting. Inner container is inverted for filling. Outer container is replaced and the fount is turned over. The water automatically feeds down. The top prevents birds from perching on feeder. NO VALVES TO STICK OR CLEAN.
Replaced a similar one gallon unit that had pitted through with this new waterer. Should be good for another twelve years.