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.
If your hot water heater problems relate to a lack of sufficient hot water, there may be several causes. If the water heater isn't heating water at all, hot water heater problems can be solved in different ways depending on whether you have an electric water heater or gas water heater.