Fitting an Electric Pump
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Geoff Seddon |
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Geoff Seddon fitted an electric pump to his Island Expedition
- the pictures speak for themselves!
"After participating in a number of courses over
the last couple of years and being a natural swimmer as well, more or
less as soon as I got my own boat, earlier this year, I decided to go
down the electric pump route. The options seemed to be either a battery
operated model, which are great because they can be passed to another
boat, or a plumbed in one. I decided on the plumbed in type for two
main reasons, physical size and the fact that the boat I bought already
had a compass light fitted (which earns admiration and jealous looks
wherever it goes) So one power supply for both jobs.
After a considerable amount of dithering I put the outlet in the starboard
deck, just behind the front bulkhead, with the discharge pipe sweeping
down and across to a stowage point on the opposite side just under my
left knee. I didn't mount the pump permanently in its operating position
because, being somewhat clumsy, I thought I would stand on it too many
times- I usually end up being the last person off the beach for a variety
of reasons, the main one, in my opinion, being that I am a very caring,
sharing person and help everyone else to embark before getting on the
water myself. This can result in a quick launch off a quickly disappearing
and/or rocky perch with "stuff occurring". It's a lonely job,
but someone's got to do it.
Landings too I often find somewhat problematic with my
general lack of agility, South Bishop springs to mind as a case in point.
Anyway I digress, as usual. The upshot of all this is that I needed
a fit leaving maximum cockpit space with the pump operating position
immediately in front of the seat. The Expedition seat is the bulkhead
and given the boats' propensity to weathercock, with me paddling it
at least, I habitually trim stern heavy, so a forward pump position
I judged to be a non starter.
The next quandary was where to mount the switch-box, which like the
battery-box is waterproof. The first thought was centrally under the
deck, but I finally went for the port side just in front of my knee,
I like the present hand pump stowage and the cable run is shorter. The
switches, which are waterproof toggles, face forward and the fittings
are secured with shock-cord onto plastic cuphooks (£0.99 for 24
from BOSS Fishguard) which are glassed in, apart from the switch box
which is also held down with shock-cord but in this case threaded through
two glassed in plastic tubes (the handles from 2 liter milk containers)
When I bought the boat (from a very nice man in the Wirral)(one of only
two who live there) it came with a 12 volt 2 ampere hour battery so
the Rule 350 gallons per minute pump should work for about an hour on
a full charge, as it takes only about 2 or 3 minutes to empty the boat
I judge that to be big enough, but just in case it isn't the battery
box in the front hatch will accommodate another one. The compass light
which is obviously another drain on this finite resource is the bulb
out of a £2.50 illuminated bell push and will run for at least
24 hours on one charge. The next project is solar powered charging.
The pump was bought from the local chandlers, as well as the discharge
pipe, non return valve and stainless jubilee clips. The boxes, switches
and glands, together with the in line fuse in the battery box, from
the electrical shop down the road. Total cost about £50 allowing
£15 for the battery. The cables are partially sleeved in garden
hose for a bit of protection".
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Geoff Seddon - 2005
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to Boat Outfitting / Pumps.
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