Based on the photo of your battery pack, it looks like you are running a 12 volt pump with a less than eight volt power pack. That will greatly reduce the pump capacity. The pump will probably take normal 12 volt lead acid battery voltage of 14.4 volts without burnout problems. Increasing your power supply voltage will have more effect on the pump flow rate than marginal increases in flow due to changes in flow resistance in the hose and outlet fittings. Regards, Dana Dickson Dana Dickson MIS CIH CSP | ESH Area Manager | Environmental Safety and Health Unisys | MS 4943 2470 Highcrest Road | Roseville MN 55113 | 651-635-5225 Net2 524-5225 Fax 651-635-7191 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. > -----Original Message----- > From: kayakwriter_at_aim.com > > In a kayak I had a few years back, I had an Attwood Waterbuster > http://tinyurl.com/2dy7uv In my new boat I wanted a > marine-grade pump that > could be turned on and off with the sprayskirt sealed (so the > boat wouldnbt reswamp), and that ran on AAs rather than D > cells. (I have a solar panel > set-up on my kayak that can recharge AAs but not Ds.) Via > Paddlewise, I > discovered Mike Dalybs set-up: > http://www.greatlakeskayaker.ca/pump.html *************************************************************************** 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/ ***************************************************************************
[Please remove all old content that is not pertinent to your reply including old headers and footers. It's list policy.... this post was modified to meet policy] Hi Dana, Thanks for your interest and the comment. I guess it's not clear in my text or in the photos, but there are actually two 6 AA cell battery holders in the Micro Box, wired in series. Rechargable AAs are 1.2 volts rather than 1.5 volts like alkaline. So 12 x 1.2 volts = 14.4 volts. One other possibility I'm going to experiment with: I used the batteries fresh out of the packs, without recharging them, since they're supposed to self-discharge only very slowly. I'll charge them up fully and run things again. Cheers, Philip -----Original Message----- From: dana.dickson_at_unisys.com Based on the photo of your battery pack, it looks like you are running a 12 volt pump with a less than eight volt power pack. That will greatly reduce the pump capacity. The pump will probably take normal 12 volt lead acid battery voltage of 14.4 volts without burnout problems. Increasing your power supply voltage will have more effect on the pump flow rate than marginal increases in flow due to changes in flow resistance in the hose and outlet fittings. *************************************************************************** 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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