Water heater vent question

[spikedaddy99]

My boat was splashed this weekend, and when I got to the Marina and hooked up power and water, I had water flowing from the hot water heater vent opening on the port side. Anyone have a clue why water would flow from this vent and what I do to correct the situation?

Boat ran beautifully. I don't know about you, but there isn't much better in life than the first "throttle up" after such a long winter.
Mike

 

[JamesT]

Mike, I had the same problem last month. My entire fresh water tank would drain out through that water heater overflow in about an hour. I had the temperature pressure valve (TPV) on the hot water heater replaced and that did the trick.

 

[my3sons]

Pressure relief valve is most likely open. It is best left in the open position for winter storage after draining the tank, you just need to flip the toggle down.

 

[spikedaddy99]

Thanks guys, that makes sense. I should have checked he HWH but I had to wait until I got home and look up in my manual what the darned vent had been attached to.

 

[Skuza]

Second the relief valve. Sometimes even after being toggled closed they will continue to leak so keep an eye on it. If it does it's an easy fix as I changed ours for the same problem, began to drip.

 

[AKBASSKING]

Add some pressure to your water line and move the relief valve a few times to seat it properly

 

[spurdog]

Same happened to me this year. Replaced the pressure relief valve and all is well.