Bilge alarms

[boatone]

Please take a look at my post on MoboChat re 'Of Bilge Pumps and Float Switches...' and let me know what you practical guys think of the idea?

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[Talbot]

Seems iminently sensible to me. but then I dont have fixed electric bilge pumps anyway. Several hand driven ones around the boat to be able to suck out any compartment, and a mobile 2000 gal/hr monster for emergency.

I also dont have a shaft going through a hole in my hull either!

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[dickh]

Had a brief look, as far as I remember all fishing boats have to have a low and high bilge alarm. There was a recent sinking of a fishing boat where the high bilge alarm wasn't working/couldn't be heard(can't remember the details) and the boat sank! quite rapidly. There is an emergency bilge pump which can be fitted around a prop shaft, always rotating but only actually pumps when there is a large amount of water around it - can't remember the name - from New Zealand I think - but had a tremendous pumping ability and sounds ideal for a large mobo. I looked at it the other day but can't remember where!

<hr width=100% size=1>dickh
I'd rather be sailing... /forums/images/icons/smile.gif

 

[andy_wilson]

Ericsson Pump nm

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[Ships_Cat]

We use a bilge alarm, but like many sailboats rely on hand pumps. The bilge alarm sounds with about 1 litre of water in the bilge so will pick up even a minor weep (it is in a sump and the boat is normally dry bilged).

Was made with a float switch and a ninety something db piezo alarm, but is left off when the boat is not attended.

Does not seem to be commonly known by forumites but small commercial vessels in most places do not have automatic bilge pumps because of the risk of pumping contaminated bilge water over the side (which is illegal in most places). Usually rely on an alarm with pumps being manually switched - in my experience there is no external alarm for the case of the vessel being unattended.

John

<hr width=100% size=1>I am the cat but I am only 6.