Bob Volin writes: "The eleven-minute emptying time is certainly excessive, and a real surprise. Our Rule 500 pumps (same rating) empty our Romany cockpits in about 4 minutes. And that's with modified home plumbing-type check valves installed. Anybody have the same/different experience?" Just this last weekend I timed pumpouts as follows: 1. Cockpit full, off water, no paddler in cockpit, using Rule 500 electric pump only, 3.5 min, emptied to the point at which the pump stopped sucking. 2. Cockpit full of water and paddler, after a re-entry on the water, using Rule 500 electric pump and foot pump, emptied to the same point when the electric pump stopped sucking, about 2 minutes. I don't have any check valves installed, just a stopper in the outlet to stop water coming back into the cockpit through the outlet. The stopper is not a tight fit, and gets pushed out onto its short tether string when pumping starts. A check valve would be an improvement. Does anyone have experience of higher capacity electric pumps? I have heard ideas that the Rule 500 is more reliable than the Rule 1100. I wonder if two Rule 500 pumps connected to two separate batteries and switches would be a solid system, despite the weight? When using the electric pump, as the water is pumped out a vacuum is created in the cockpit space causing the spray deck to suck down. I open a gap in the body tube of the spray skirt to relieve this and keep the pump going at full capacity. This wouldn't be possible if both hands are on the paddle working hard. Has anyone tried a small hole in the deck to get over this? The hole would be small enough to only let in a few drips, perhaps like the bulkhead holes described in other posts which relieve pressure variation in bulkhead compartments and stop rubber VCP hatches bulging. Regards,PT *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Sun Jan 30 2000 - 17:31:34 PST
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