Other causes of ectropion are scarring, burns, trauma (called cicatricial ectropion), spasm of the orbicularis muscle, which may affect either the upper or lower eyelid, or paralysis of the orbicularis muscle in which only the lower eyelid is affected.
It is possible that there is nothing wrong with your water heater. There is a pressure relief valve on top that may be releasing water because your primary water pressure reduction valve for the house is worn out. The fact that the leak is intermittent suggests this.
Why do I only Get 5 Minutes of hot water. For all types of water heaters a common cause is a bad dip tube. The dip tube is on the cold side of the water heater it drops down to the lower part of the water heater, pushing the cold water to the bottom and pushing the hot water out.