I have this pump and there is no doubt its fast, priming it is a real pain though unless you are happy to through it over the side everytime. I have just finshed hard mountng it in my boat with a rule 500 GPH through hull pump in parallel to prime it. I use it fill and empty my sacks now and its great, fast especially with the priming pump left on as well... I put large flow fittings on the pump and sacks to get the max out of the pump otherwise the restrictions slow it down.
Oh and you need to be carefull how you wire it in as it pulls quite a current. I wouldn't put it through the lighter socket as they are not normally rated high enough. From memory they need to be on a 20 amp fused feed.
(Message edited by phimple on July 02, 2003)