Fresh Water holding Tank

[Trinity]

I hold 120 gallons on my 400 sedan Bridge - have replaced both fresh water pumps -
I somehow am losing water while underway or at the dock when I leave my two pump switches in the on position on my panel
I have no idea where the water is going ?

 

[Hampton]

I hold 120 gallons on my 400 sedan Bridge - have replaced both fresh water pumps -
I somehow am losing water while underway or at the dock when I leave my two pump switches in the on position on my panel
I have no idea where the water is going ?

See other post, same topic. Check water heater for pressure relief. (Try leaving water heater off and see if you still lose water with pumps on, at dock - Stay on boat to ensure tank doesn't run dry and run pumps all night.)

Check transom shower for running/dripping water. Check under all sinks. Check for leaks on the fresh water manifold with the pumps on.

 

[Trinity]

Will try it
don't think any sink is leaking
but will look for it
thanks the the quick reply

 

[oceanpearl]

Do you hear the pumps working while at the dock? If they are, check your common sump drain and see if any water is draining there and from which drain exit hose. The drain is under the floor in front of your staterooms.
BTW how do you know you are losing water?

 

[Mr Salt]

I had a situation where the water kept cycling on and off. I found that the pressure reflief value on the hot water heater had gone bad and that it was leaking, ut becuae it was draining into the common sump there was not apparent evidence of the leak. I found it by feeling that the sump was warm and then saw the stream of water comong from the fittin. If you are losing that amount of water you should be able to find it easily.