[Public-List] deck mounted bilge pump

[americo silva]

pumps wont work if batteries die

On Wed, Sep 15, 2021 at 4:09 PM Stephen Gwyn via Public-List <
public-list at lists.alberg30.org> wrote:

>
> A dissenting opinion: I find the Whale manual bilge pump incredibly
> unreliable.
> The slightest pinhole in the diaphragm or lack of seal in the flaps and
> you can't get enough
> head to pull water up out of the bilge. The aluminium body very is prone
> to corrosion
> if there is a scratch in the coating. And for some reason they use
> British Whitworth threads which make sourcing replacements difficult,
> expensive or both. It's capacity in terms of GPH is much lower then the
> larger electric pumps. The ergonomics of pumping are poor; pumping
> more than a few minutes with get very tiring, very quickly.
>
> Manual bilge pumps are not required by Transport Canada on vessels over 9m.
>
> I have 3 pumps on board. The Whale, a 2200gph Johnson and a 150gph Rule,
> with the last on an automatic switch. Every spring, I dump the water
> tank into
> the bilge and exercise all 3 pumps. There are problems with Whale almost
> every year, whereas the Johnson and Rule have failed only once each in
> 15+ years.
>
> "Oh" you say "but the electric pumps won't work if the batteries are
> underwater."
> I assure you, from experience, they will work just fine. The Johnson had
> the bilge
> dry in less than a minute.
>
> I have, as I say 3 pumps. But the Whale is not the one I'm counting on.
>
> SG
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