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DIY PVC pump to save money on repairs
The science pros at TKOR create a DIY PVC pump to help save money on repairs. Trump dials Collins with 'profanity-laced rant' ...
The ingenious device cost just $2 to make, yet works almost as well as its expensive and cumbersome lab counterparts. A simple pressure pump, made from balloons and nylon stockings, means more people ...
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