Can’t find a simple decent moveable pump to shift water

I have an oil lift pump that works off mains, - no longer needed so free! Contact to collect/ courier. Time garage was emptied.
 
I bought a seaflo pump and made up a battery box using a little Stanley tool box, a 12aH lithium battery, got some little water proof connectors, a switch and some hose and bingo. Not as cheap as a drill pump but 500gph
 
OP asked for an electric pump but, if anyone does want a manual one, I bought one of these recently and found it better than the Whale brand one that it replaced:

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I got mine from AliExpress, no doubt Amazon and eBay also have them. It was about £20, so I'd guess half the Whale's current price?
 
I'm also a great fan of Aquavac, I wouldn't be without one. For those last few drops of bilge water, with a small bore pipe taped on the end it can get everywhere, especially good for oily sludge under the engine but not sure how safe it would be with fuel. Mine's over 20 years old and still on the original filters
 
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