A Bilge Pump Question?

[Trevethan]

I quite like that type -- the whir ever so often becomes rather re-assuing. They usually have a third wire to over-ride the auto cycle so if you know you are leaaking you can turn it on.

As for teh current draw, its minimal when not under load. I left mine for a month and the volatge drop was negligible -- probably as much due to self discharge as anything else.

A very small solar panel -will easily maintain the charge.

There are two problems with pumps like this -- and this probably applies to most impellor types I guess -- debris especially swmbo's hair ends up in the bilge somehow -- not really sure how, then winds around the pump and can stop it.

The other problem is that unless you have a nice deep sump, its impossible to totally dry the bilge.. not that mine ever is anyway..

Which is why I fitted a whale gulper as well. Sucks anything and can move water pretty quickly. no matter how much crap there is in it.



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[Medskipper]

oh sure, I was not talking about on the hard Brendon, I think someone said they would not use a bilge pump at all!

I think when on the hard, all systems should be closed, shut down or disconnected! unless you are charging the battery and even then I don't leave it connected to shore power when I am not actually at the vessel!

Barry


<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[mjf]

Yes, what I said was that I would have Rule float type against solid state for the reason stated.

I do not understand your reference to invalidated insurance .

In/on baots I reckon the best policy is KISS - Keep it simple - stupid!

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[Medskipper]

Well sure, Nothing these days is what it is claimed to be is it, its called the four thousand but lets face it if you needed that much pumped out every hour I think you must be sinking anyway!! call the coastguard! But it certainly emptied my 3 gal bucket of water in an instant!

Barry



<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[Medskipper]

maybe I read the message incorrectly, but I thought someone said they wouldn't have a bilge pump on board at all! sorry If I misread it!

Barry


<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[dickh]

Plus of course these a US gallons! - which unusually for US products are smaller than Imperial gallons - from memory about 0.83 of Imp Gallon(3.78l). PBO did a test a while back and reckoned you should take all these rated ouitputs witha large pinch of salt. All these rates are worked out at zero head with no hoses attached so not at all realistic.
4000 Us Gallons = 15120Litres say rely on say 10000 - 12000 Litres/hr, all assuming your batteries are up to full charge of course!

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

 

[boatone]

Actual figures for the Rule 4000 are <A target="_blank" HREF=http://www.boatsontheweb.com/> Website, Photo Gallery, Chat Room, Burgees

 

[Ships_Cat]

Which shows the other thing that happens - pump output drops rapidly with voltage drop.

For our test we flooded the bilge in one watertight compartment in a 76 foot power boat with fresh water and worked out the volume using hull modelling software - we had to run one of the vessel's generators to keep the voltage constant at 24 volts.

John

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

 

[Dave_Snelson]

Yes, my smaller Rule pump which is new this year is exactly the same. It flattens your battery in the end! I have an isolator switch to switch it off when I want to (like sleeping on board).

<hr width=100% size=1>Madoc Yacht Club
<A target="_blank" HREF=http://www.madocyachtclub.co.uk>http://www.madocyachtclub.co.uk</A>

 

[Trevethan]

So its best to get holed in U.S waters then as the water will flow out far more quickly than off the coast of the UK?.. *heehee*

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