I noticed yesterday that Rule makes a 500 GPH (8.3 GPM) submersible pump with a float switch. This would eliminate the need for an "Off-On" switch with all of it's associated problems. Having never been in the position of sitting in a flooded kayak, yet, I can only listen and speculate. I do think the battery powered pump would be useful for 2 reasons: 1. It's pumping while you are paddling 2. It's pumping with the spray skirt attached (I assume it is vented through the hull). Being able to control the boat while not taking on any additional water would seem to me to be very desirable after a re-entry. Regards, Ron *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
Peter, Thanks very much for the reference to sites. It seems that Americans are not as insistent about using pumps (other than the portable piston type with its drawbacks). I'm going for redundancy. Incidentally, had I been more observant and noted your location, I might have been more deferential in my initial response. I am mindful of the image of the ugly American. Happy sailing! Sid -----Original Message----- From: Peter Treby <ptreby_at_ozemail.com.au> To: 'Sid Taylor' <tayls_at_snowcrest.net>; Paddlewise (E-mail) <paddlewise_at_paddlewise.net> Date: Saturday, March 10, 2001 10:26 PM Subject: RE: [Paddlewise] Pumps >"Pumps have always been problematic. I have recently purchased a pump that >has the batteries inside. Although it bench-tests well, the ocean >environment will be the true test. It uses 3 D batteries and pumps 200 gpm >with a 4 foot head and may be purchsed from West Marine. We'll see. I'm >going to buy a deck-mounted hand pump and mount it just aft of the cockpit. >This is a cumbersome position but I don't want it interfering with re-entry. >I may try to mount it on the pegs. >Sid Taylor" > >When you're thinking about pumps, the following may be useful: >http://users.senet.com.au/~pcarter/pumps.html >http://www.nswseakayaker.asn.au/mag/35/pumps2.html >http://www.nswseakayaker.asn.au/mag/35/pumps1.html > >Regards, >Peter Treby >37°42'S 145°08'E > > *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
I looked into the float switch a couple of years ago, but abandoned the idea when it became evident that (1) the switch is very large, and (2) it would leave lots of water in the boat. I opted for an expensive, but dependably submersible, toggle switch. It's mounted with velcro just under the coaming, just off the centerline. At this position, it's easy to switch on even through the spray skirt. I do need to pull the edge of the spray skirt off to shut the pump off, but I can wait for that until I'm in non-threatening conditions. The pump is advertised to be able to run dry without burning out. From: Ron and Barb <rbdunningtons1_at_home.com> > I noticed yesterday that Rule makes a 500 GPH (8.3 GPM) submersible pump with > a float switch. This would eliminate the need for an "Off-On" switch with all > of it's associated problems. > > Having never been in the position of sitting in a flooded kayak, yet, I can > only listen and speculate. I do think the battery powered pump would be useful > for 2 reasons: 1. It's pumping while you are paddling 2. It's pumping with > the spray skirt attached (I assume it is vented through the hull). Being able > to control the boat while not taking on any additional water would seem to me > to be very desirable after a re-entry. > *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
Yes, you're right, its 200 gph. I must have been dozing! It actually uses 3 D batteries ... and yes it would be slow. I'm about to outfit a rule pump with a higher capacity. Sid -----Original Message----- From: Ulli Hoeger <uhoeger_at_is.dal.ca> To: PaddleWise_at_paddlewise.net <PaddleWise_at_paddlewise.net> Date: Monday, March 12, 2001 2:30 PM Subject: Re: [Paddlewise] Pumps >"Peter Treby" <ptreby_at_ozemail.com.au> wrote > >>"Pumps have always been problematic. I have recently purchased >>a pump that has the batteries inside. Although it bench-tests well, >>the ocean environment will be the true test. It uses 3 D batteries >>and pumps 200 gpm with a 4 foot head and may be purchased >>from West Marine. " > >200 GPM ?! That thing will suck you right out the cockpit with all >the water. ;) >More likely 200 GPH. How long did the 2 D cells last in your >bench test? 200 gph gives less than 3.5 gpm, not to impressive! > >Last season I fed my Rule 500 gph pump with 8 AA cells (to get >the 12V). They lasted for several runs were the cockpit was full >with water up to the coaming with nobody sitting in it ~5 minutes >each time. During weekly rescue drills on the lake for 3 month I >burned 1 set of batteries. In this situation, with me back in the >rightened boat and the amount of water getting in during reentry >and roll or similar situations, it took less than 2 minutes to get the >water out. No problem to switch the pump on before getting back >in, but shutting it down after spraydeck back on and water out was >a pain in the neck with the switch under the rear coaming, espcl. >when working and concentrating on preventing another capsize. >Right now I am working on a sensor switch (bench tests work). Its >a little circuit with a relais, two transistors, and two sensor >electrodes. The switch I use has 3 positions, 1)OFF, 2) ON with >sensor (pump only works if water is above a crtain level in the >bottom of the boat), 3) ON pump runs as long as switch is in this >position and batteries last. Personally I see advantages compared >with a common float switch. Time will tell. > >Cheers > >Ulli > > >*************************************************************************** >PaddleWise Paddling Mailing List - Any opinions or suggestions expressed >here are solely those of the writer(s). You must assume the entire >responsibility for reliance upon them. All postings copyright the author. >Submissions: PaddleWise_at_PaddleWise.net >Subscriptions: PaddleWise-request_at_PaddleWise.net >Website: http://www.paddlewise.net/ >*************************************************************************** > *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
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