Colin Calder wrote: > > ...<snip>... > I now have a rule 500, mounted on the rear bulkhead, plumbed in with auto radiator > hose, battery in a water proof box in the rear hatch, and a fully submersible > switch (which incidentally was the most expensive bit - cost more than the pump!) > mounted on the deck behind the cockpit. ...<snip>... > go for a proper installation of a pump like the rule 500. This strikes me as excellent advice, but I am wondering why so many people choose the Rule 500 instead of the Rule 800. The 800 comes in two form factors: box-shaped and cylindrical (like the 500). The cylindrical 800 is exactly the same diameter as the 500 (2.375") and is only 1/4" taller (3.75" versus 3.5"), so it takes up essentially the same amount of space. But it has two advantages. The primary advantage is that its output is 60 percent higher, and it will thus empty your boat at a substantially faster rate. A secondary advantage it uses slightly less energy to pump a given quantity of water since its output is 60 percent higher, but it only draws 53 percent more current. (The 12-volt 500 draws 1.9A while the 12-volt 800 draws 2.8A.) Is there something that I am missing? That extra quarter inch seems to provide a significant advantage in pumping speed (while using less energy per gallon pumped). Dan Hagen *************************************************************************** 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 Tue Oct 12 1999 - 06:03:12 PDT
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