Sea Kayaks Techniques Bulletin Board

Re: High Volume Pumps

Posted By: Ian Johnston
Date: Monday, 25 November 2002, at 9:53 p.m.

In Response To: High Volume Pumps (Brianne Corbett)

Hi Brianne,

: I think you are right about safety so I use an even higher capacity pump with
: a 1 1/8" output pipe vs 3/4". I use a 3.4 amp hour SLA battery
: which is sufficient to drive the 1250 GPH Attwood for well over an hour
: (2.8 amp draw). The nice thing is that I can evacuate 30 gallons in less
: than 2 minutes... actually in about 1 3/4 minutes. The Attwood 625 would
: take at least 3.5-4.0 minutes to evacuate the same volume.

My Arluk will only fit the 500gph pump because of space restrictions. I use 11 amp batteries and the draw is 2.4 amps. This combo drains my cockpit in less tha 2 minutes without me in it. It is much less when my body displaces much of the water. I use a 3/4" output pipe which exits directly behind the cockpit.

I also moved my front bulkhead back 10 inches to reduce the volume of water in a capsize. The battery in the Arluk is in the rear hatch and all connections are inside a waterproof switch box I made.

: The weight of the battery need not be a problem at all.

I agree. I have a loaded touring kayak that weighs about 400 pounds with me in it. What is an extra pound of three?

: The foot pumps I have seen
: actually weigh more than the entire electric pump system. So what gain?
: None that I can see. No weight advantage... lower flow rate... lower
: reliability... hard to fix or replace... hard to install.

This is exactly why I went with the electric pump. After researching and testing hand and foot pumps it was obvious to me that the choice was between an electric pump and a sea sock. Sea socks make me shiver!!

Ian

Messages In This Thread

Kayak Pump
Petewp -- Sunday, 24 November 2002, at 8:38 a.m.

Re: Kayak Pump
Brianne Corbett -- Sunday, 24 November 2002, at 6:00 p.m.

Re: Kayak Pump
coronaboy1 -- Tuesday, 26 November 2002, at 11:54 a.m.

Re: Kayak Pump
Bert -- Sunday, 24 November 2002, at 8:28 p.m.

Re: Kayak Pump
Bert -- Sunday, 24 November 2002, at 8:38 p.m.

Re: Kayak Pump
Robert Woodard -- Sunday, 24 November 2002, at 9:05 p.m.

Re: Kayak Pump
Ed Falis -- Sunday, 24 November 2002, at 10:38 p.m.

Re: Kayak Pump
Rick Allnutt -- Sunday, 24 November 2002, at 11:19 p.m.

Gusher or Guzzler
Brian Nystrom -- Monday, 25 November 2002, at 1:11 p.m.

Re: Gusher or Guzzler
Robert Woodard -- Monday, 25 November 2002, at 9:39 p.m.

Re: Gusher or Guzzler *LINK*
Ed Deery -- Tuesday, 26 November 2002, at 10:36 p.m.

Re: Kayak Pump
Ian Johnston -- Monday, 25 November 2002, at 3:34 a.m.

High Volume Pumps
Brianne Corbett -- Monday, 25 November 2002, at 7:09 p.m.

Re: High Volume Pumps
Robert Woodard -- Monday, 25 November 2002, at 9:53 p.m.

Priming and impellers
Brianne Corbett -- Tuesday, 26 November 2002, at 8:04 p.m.

Re: High Volume Pumps
Ian Johnston -- Monday, 25 November 2002, at 9:53 p.m.

Current Draw 500 vs. 625
Rick Allnutt -- Tuesday, 26 November 2002, at 8:27 a.m.

Re: Current Draw 500 vs. 625
Brianne Corbett -- Tuesday, 26 November 2002, at 7:36 p.m.

Re: Current Draw 500 vs. 625
Ian Johnston -- Tuesday, 26 November 2002, at 9:54 p.m.

Re: Current Draw 500 vs. 625
Ian Johnston -- Tuesday, 26 November 2002, at 9:58 p.m.

Re: Kayak Pump
Paul -- Tuesday, 26 November 2002, at 9:41 a.m.

You beat me to it!
Brian Nystrom -- Tuesday, 26 November 2002, at 12:16 p.m.

Re: You beat me to it!
Paul -- Tuesday, 26 November 2002, at 9:18 p.m.

Re: You beat me to it!
Brian Nystrom -- Wednesday, 27 November 2002, at 12:15 p.m.

Re: Kayak Pump *LINK*
Travis -- Monday, 16 February 2009, at 6:10 p.m.

Re: Kayak Pump
Evan -- Thursday, 16 April 2009, at 10:25 a.m.

Re: Kayak Pump additional help request
Evan -- Thursday, 16 April 2009, at 10:41 a.m.

Re: Kayak Pump additional help request
Kelvin -- Sunday, 19 April 2009, at 7:02 a.m.

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