I noticed some water at the base of my 40 gallon Envi-ro-temp electric water heater this morning. I believe this heater is about a 1994 model. Upon further inspection I noticed that all 3 reservoirs on top of the tank were full of water. When I say reservoirs I mean the 3" cups that are home to the hot and cold water connections and a 3/4" plug. It is clear that all 3 of these reservoirs are filling up individually and slowly running over the side of the water heater. I check this heater pretty regularly, and have never noticed anything abnormal. Is it normal to have multiple failures at the same time?