I thought about this when I was running new hose for the engine intake.
However, I read that the benefit of doing this is very small. Just look at
the volume of water exiting the exhaust and this is the water you would be
removing from the bilge when the intake is diverted to the emergency bilge
pump function. I didn't consider the cost of this alteration worth the
trouble and low volume of water removed. There is a much higher volume pump
that can be run off a pulley (power take-off) and activated with a clutch
cable. When the cable is pulled the free wheeling pulley engages and starts
turning a rotary piston pump. The faster the RPM of the engine the more
water is pumped. I understand, the amount of water moved is very good with
plenty of pressure to overcome small debris in the bilge. The question is;
where to mount the pump housing. With the engine already turning an
alternator and in some cases a refrigeration compressor and tight spaces in
the engine compartment, it would be hard to find a place for the additional
pump.

I decided to go with two high volume Rule, DC powered pumps.
After last years crisis with the leaking stuffing box I know the value of
having plenty of pumping power onboard. Recently I read that a very small
bilge pump is a good idea to remove small amounts of water on a daily bases.
This keeps the big pumps from running for the little stuff and keeps the
high amp draw big guns from running the batteries down when only a small
amount of water needs to be pumped.
Richard Cassano

> -----Original Message-----
> From: Richard B. Emerson [mailto:pavilion # pinefields.com]
> Sent: Monday, May 02, 2005 7:34 AM
> To: Baba, Panda and Tashiba List
> Subject: Re: [baba] Using engine freshwater seacock as an emergency bilge
> pump
> Importance: High
>
> I've seen this (do you mean raw or fresh water?) suggested before and
> obviously Groco thinks it's worth building parts for the item. That
> said, I wonder if the complication of the added plumbing and fittings is
> worth the effort. I'd go with a second electric bilge pump first.
> Also, with a little creativity with plumbing parts, it should be
> possible to get the same results without buying the Groco through hull /
> seacock combo which has enough potential weak points in it to worry me.
>
> BTW, FYI, the imbedded link in your note reads
> "blocked::http[colon-slash-slash][w-cubed].groco.net/05-Cat/05-CAT-
> GIFS/Page-30.jpg"
> (spelling of part of the URL used to keep most mail tools from
> re-displaying the link as an active link).
>
> Rick Emerson
> S/V One With The Wind, Baba 35
>
> Bruce wrote:
>
> > [...]In their catalog, they show an arrangement whereby the freshwater
> > engine seacock can be diverted as a freshwater engine pump.[...]
> > It's in their catalog under 640-xxxx, where xxxx is the pipe size:
> > http://www.groco.net/05-Cat/05-CAT-GIFS/Page-30.jpg
> > <BLOCKED::http://www.groco.net/05-Cat/05-CAT-GIFS/Page-30.jpg>
>
>
>



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Received on Wed May 04 05:31:04 2005