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Well, after building my air tanks for my pneumatic snake, I needed a way to get them inflated faster then with the tiny lego pump. What's faster then ...
An old inner tube. Only valve needs to be working.A tube that a lego pneumatic hose will fit snugly on.Glue. I used hot glue.
1. Cut the innertube valve out. 2. Insert the tube into the end of the valve. 3. Glue.
I found this to work extremely well. Filling my small air tanks took 30 pumps with my lego pump and 2 with a SMALL bike pump.
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