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From: Robert Woodard <woodardr_at_tidalwave.net>
subject: [Paddlewise] Foot Pump Springs
Date: Sun, 23 Jan 2000 13:56:33 -0500
I hate to bring foot pumps up again so soon but...

I just got a Guzzler 400 foot pump to mount in my kayak. Unfortunately, the
spring is so strong that it just wasn't practical for use in a kayak. I've
cut the length down and re-bent the spring to the original height. This has
at least got it to the point where it would be usable, but still too stout
for any extended pumping. I can't cut any more length off the spring without
affecting the height. Since the pump only has to pull water up a 1 foot head
in a kayak, I just don't see the need for a real strong spring (and the
accompanying leg cramps).

I wonder if anyone else has any experience with foot pump springs and what
they used. I remember reading someone used bungie, but I don't understand
how that was attached to the pump.

Thanks in advance,

Woody


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From: Nick Gill <nicholas.gill_at_adfa.edu.au>
subject: Re: [Paddlewise] Foot Pump Springs
Date: Mon, 24 Jan 2000 08:51:58 +1100
I and others have found getting suitable springs a pain.

the bungie idea is to attach it to the cut down handle of a standard hand operated bilge pump and run it through a fitting on the roof of the cockpit, (and secured and adjusted with an olive cleat of course!). The bungie draws the pump diaphragm back.

I've not used this system as I have an electric pump at the moment but its quite popular here and one builder has started using it. One reason for its popularity is its simplicity and it makes it possible to use cheap bilge pumps effectively. ie. saves buying henderson and other relatively costly  pumps. The people I know who use this system just use the cheap plastic pumps that yacht chandlers have in droves.

whether this would work with the gusher you have i don't know. Perhaps drill a hole in the top and bolt in  something to loop the bungie through?

nick

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From: <JSpinner_at_aol.com>
subject: Re: [Paddlewise] Foot Pump Springs
Date: Sun, 23 Jan 2000 20:52:10 EST
Nick,
do you have some kind of drawing or something? I can't get any concept of 
what you are talking about. It SOUNDS interesting, though.

Joan Spinner
   * * *
Paddling the Chesapeake Bay watershed
In a red, CD Breeze or
a yellow/white Dagger Meridian SK

In a message dated 1/23/00 4:54:49 PM, nicholas.gill_at_adfa.edu.au writes:

<< the bungie idea is to attach it to the cut down handle of a standard hand 
operated bilge pump and run it through a fitting on the roof of the cockpit, 
(and secured and adjusted with an olive cleat of course!). The bungie draws 
the pump diaphragm back.

I've not used this system as I have an electric pump at the moment but its 
quite popular here and one builder has started using it. One reason for its 
popularity is its simplicity and it makes it possible to use cheap bilge 
pumps effectively. ie. saves buying henderson and other relatively costly  
pumps. The people I know who use this system just use the cheap plastic pumps 
that yacht chandlers have in droves.

whether this would work with the gusher you have i don't know. Perhaps drill 
a hole in the top and bolt in  something to loop the bungie through? >>

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From: Nick Gill <nicholas.gill_at_adfa.edu.au>
subject: Re: [Paddlewise] Foot Pump Springs
Date: Mon, 24 Jan 2000 13:07:11 +1100
> Nick,
> do you have some kind of drawing or something? I can't get any concept of 
> what you are talking about. It SOUNDS interesting, though.
> 
> Joan Spinner

see
 http://203.147.209.230/mag/35/pumps2.html
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