Does anyone have any experience with SUP pumps? Whether electric or battery-powered (or both). Unfortunately, I can't find any reviews of current pumps that seem trustworthy. I can only find useful test reports of pumps over 300. But since more and more pumps are conquering the market, there must also be cheaper, good models. Or is it all "junk" and I really have to spend 300? Thanks for the feedback, if there is any...

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