Re: [Paddlewise] Current Info on Electric or Foot Pumps?

re recent postings

if someone would make an alkaline powered pump with  more capacity than the
attwood (You could probably have quite a few alkalines to make up the
weight of a 12v gel cell- has anyone weighed them up? the attwood has 3 d
cells) and made it with an external switch for deck mounting I reckon
they'd have a winner. The only thing would be size, the design would have
to be right.
nick

Note new email address

Nicholas Gill
School of Geography and Oceanography
University of NSW
Australian Defence Force Academy
Canberra ACT 2600

Ph. 02 6268 8317
Mob. 041 7659440
Fax 02 6268 8313

Email: nicholas.gill_at_adfa.edu.au

----------
> From: Jack Martin <jcmartin43_at_radix.net>
> To: PaddleWise_at_lists.intelenet.net; VajraT_at_aol.com
> Subject: Re: [Paddlewise] Current Info on Electric or Foot Pumps?
> Date: Tuesday, 11 May 1999 12:42
> 
> From:           	VajraT_at_aol.com
> Date sent:      	Mon, 10 May 1999 10:47:20 EDT
> Subject:        	[Paddlewise] Current Info on Electric or Foot Pumps?
> To:             	clyde_sisler_at_email.msn.com,
PaddleWise_at_lists.intelenet.net
> 
> > 
> > Does anyone have a set-up which they've used awhile and:
> > 1) Easily available for purchase
> > 2) Can be installed by a non-engineer
> > 3) Won't take up a large amount of space
> > 4) Reasonable price (under $50)
> > 
> > And what about the deck port, with a cover?  Is there a kit which has
all the 
> > needed components, designed to work together?  
> > 
> > Does anyone have experience with both electric and foot-operated pumps?
> 
> We beat this topic to death a few months ago, so it's all probably 
> on the archives somewhere.  
> 
> Handpumps are the quickest way to empty a flooded boat if you're 
> doing a demo sitting by a dock in flat water.  The standard gray 
> and red pumps are powerful, and empty a flooded boat in less than 
> a minute.  However, that's not where you're going to need it --- by 
> the dock in flat water.
> 
> For my money, the foot pump is still the best option.  I looked at 
> electric pumps, but saw too many potential failure points and a lot 
> of routine maintenance.  (The Attwood "D" cell operated pump 
> which Nick mentioned is the only simple electric pump I've tried, 
> but it took forever to make a dent in my intentionally flooded 
> cockpit --- too slow for my interests.)  There are two pumps 
> available which should work well: the Henderson foot pump --- 
> basically, the venerable Chimp pump outfitted with a tough 
> stainless steel spring inside the chamber which pulls water up into 
> the pump and a pedal to expel it overboard, and the Guzzler foot 
> pump, identical in operation.
> 
> The Henderson foot pump is compact, and is ideal for sea kayaks; 
> many "British Heavies" come with Henderson pumps, although 
> there seem to be a lot of foredeck pumps coming over most 
> recently --- not a lot of foot pumps.  Downside is that it comes from 
> the UK, and it's going to run significanctly over $100 in the States.  
> To get a sense of what they look like, check out Whale, 
> Henderson's sister company's, web site --- both part of Munster 
> Simms --- <http://www.whale.ltd.uk/marpro/urchin.htm>.  Imagine 
> that pump with a plate to push in on with your foot instead of the 
> handle for both operations.
> 
> Also see the direct action Guzzler foot pump at Bosworth's web 
> site, <http://www.bosworth.thomasregister.com/olc/bosworth>; 
> functionally identical to Henderson --- maybe a slightly larger 
> footprint and overall volume --- but is made in Rhode Island, and is 
> priced at local marine suppliers at about $50.  
> 
> I have Hendersons installed in my "British Heavy" Pintail and in my 
> newly constructed CLC North Bay, and am very happy with both.  
> They're simple in operation, dependable, and batteries are neither 
> included or needed.   I can wet exit, do a re-entry and roll, put on 
> my skirt, skull or start paddling, and have the boat essentially dry 
> in one to two minutes, max.  That's worst case.  Hands on the 
> paddle, not on the pump.  In big water with no help, where you 
> might need a pump, a handpump would not likely be effective at all. 
> Foot pumps work.
> 
> As to covers and other plumbing issues, no worries.  These pumps 
> have a flapper valve on the intake port --- water can enter the 
> chamber only when the spring extends the diaphragm --- and a 
> triple baffle "goose beak" exhaust valve (much like a heart valve) on 
> the overboard end.  Little or no water will enter, especially if you 
> exhaust it over the side vice using the deck.  Keep the plumbing 
> short and sweet, but use a "strum box" or other device in the bilge 
> at the open end of the intake hose to catch the max amount of 
> water.  
> 
> Jack Martin
>
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