Re: [Paddlewise] Bilge pumps

From: Don Lowther <dlowther_at_shaw.ca>
Date: Thu, 28 Dec 2006 21:09:54 -0800
I installed an electric bilge pump in my Arluk III using a very similar set-up
to that on Mike Daly's web site. I used a Rule 500 pump and a 2.8ah sealed
lead acid battery housed in an Otter box (8.5 " x 5" x 2"). I also used the
"hot tub" air switch method.

However, I found during a 6 week paddle this past summer that the "air button"
is very susceptible to jamming when sand grains make their way between the
button and it's housing. My solution (during the trip) was to put a piece of
duct tape (trimmed to fit) over the button, making sure the tape adhered to
the entire button/housing-ring so as to seal out sand grains. I then cut a
1/2" slit through the tape across the button so that when needed I could push
my finger through the slit to depress the button and activate the pump. Over
the 6 weeks I used the pump for maybe 5 minutes, at the end of the 6 weeks the
battery still had enough charge to run the pump.

I also found that if the outlet hose was full of water (between the check
valve and through hull fitting) prior to activating the pump, it could not
push past that column of water. But if the outlet hose was clear - no trouble
at all, it pumped out water like a fire hose. (I haven't looked into why that
was; perhaps someone here has the answer already? ) My on the fly solution
once again was duct tape, this time across the through hull fitting, kept the
tube clear of water and when the pump was needed I just peeled the tape off.

Once the bugs are worked out (or around) it's a great little set-up.

Don
Victoria BC
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Received on Fri Dec 29 2006 - 10:05:27 PST

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