Fresh Water Tank Full Alarm

[rogerthebodger]

My tank vents are over the galley sink and if the sink plug is left in the sink overflow will take care of the excessive in the tank fill

I also have a simple float switch in the top of all my tanks, 2 water, 3 diesel and waste with indicator light and buzzer.

 

[PaulRainbow]

My tanks are vented above the heads sink. If the tanks get too full most of the water overflows from the filler and runs along the side deck. If it's a really powerful tap a little water sometimes comes out of the vent. As they get almost full my tanks make a couple of banging noises, which act as a good alarm.

 

[macd]

As they get almost full my tanks make a couple of banging noises, which act as a good alarm.

One of the benefits of relatively thin-walled steel tanks, I suspect. Ours do the same, and even the half-deaf skipper notices.

 

[PaulRainbow]

One of the benefits of relatively thin-walled steel tanks, I suspect. Ours do the same, and even the half-deaf skipper notices.

Yes, i get a bang from the lower tank about 1 day before it runs out and a bang from each tank as they fill.

 

[LittleSister]

Has anyone tried those whistles that go in the vent tube to indicate by sound nearly full, then really full?

 

[Falling Star]

Has anyone tried those whistles that go in the vent tube to indicate by sound nearly full, then really full?

I fitted one to each diesel tank in the vent tube as per instructions. They work very well.
http://www.bartonmarine.com/products-fuel-whistle.asp

 

[KellysEye]

>Our alarm is water flowing all over the deck! I then turn the tap off

As was ours, works perfectly and costs nothing.

 

[Hydrozoan]

Our vent exits to the exterior, but I don’t like filling it with water (which I think encourages bacterial growth) so I find the gauge at #3 very useful, and it gives an adequate indication of remaining tank capacity as well – with no moving parts and all for about £30 and a little effort.