Re: [Paddlewise] Electrodynamic hydropurgation devices

From: Peter Treby <ptreby_at_ozemail.com.au>
Date: Wed, 01 Jun 1994 08:07:59 +1000
The battery I have was purchased at an electrical / electronic chain store,
Dick Smith Electronics, a similar outfit to Tandy Electronics. I suppose
these exist in the US. The battery is a "Newmax" FNC 1270 , 12V 7AH sealed
rechargeable battery made by Dong Ho Electric Co Ltd in Korea, so should be
available worldwide. It measures 6"x3.5"x2.5". This type of battery is sold
to run domestic security alarm systems. It is too big and heavy. The same
type of battery is available in 2AH and 4 AH sizes. The 4AH is about 2/3rds
the size of mine, and would be adequate. Probably the smallest one would be,
too. In the first six months of use, I didn't have to recharge mine. I don't
know how long it takes to discharge in actual use, but I suppose it would be
prudent to recharge it before any big trip.
I made up a marine ply box which is mounted behind the rear bulkhead, and
the wires passed through at a high level just under the deck, into the
cockpit. The hole is covered in sealant, and so far no leakage. A small
waterproof toggle switch, purchased at the same electronic store is mounted
on the deck just behind the cockpit, covered by a saddle to help accidental
operation. Actually, accidental operation isn't too much of a problem, as
the whirring of the pump is obvious.
The instructions with the pump indicate wiring in a fuse, but I have not
included this so as to avoid one more set of fail prone connections. Time
will tell if that is a good idea.

Gabriel L Romeu wrote:

> You have all convinced me that an electric Rule 500 pump is the way to
> go to fit in the kayak I am currently building.  I went to the website
> and found 5 options for this pump, the only viable options being 1.the
> pump itself 2. a new model with a lower profile 3. an mercury float
> switch or a 4. non mechanical computer switch.  My preference is to keep
> it simple, so the internal switched ones are attractive, but I am sure
> there are some issues.  Any thoughts?
>
> Where should I be looking for a battery and what is the minimal size?
> --
> :                         :
> Gabriel L Romeu                                                      :
> http://studiofurniture.com  furniture from the workshop               :
> http://members.xoom.com/gabrielR  life as a tourist, daily
> journal         :
> http://users.aol.com/romeugp  paintings, photographs, etchings, objects

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Received on Mon Jan 31 2000 - 13:08:47 PST

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