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.
1 This is a definite sign that something is wrong, and you should turn off the water heater power to the unit and call in a professional. 2  Leaking water can cause water damage to the room the unit is in, and you do not want any more water going into the unit. 3  You may see rust or what appears to be sediment in your water.