That is so cool. I love when people build awesome solutions to tough problems.
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You rock! I’d never have thought of using weed-whacker line to sim a pump tube! Very inventive! I can understand how the ridges would be irritating, they’re meant to cut albeit at high speed. Congrats on the pump and hope it helps and improves your result!
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Now, @TomH and @Chris I am known for doing things the hardest way possible, just ask my wife and sons. I did have to come up with a way to secure but easy release of the flask. The top tube on my bike is round. I found some PVC conduit clamps that would give me a flat top. The next problem was a glue that would adhere to steel and PVC. I tried JB Weld Epoxy, Gorilla super glue and what finally worked was Shoe Goo. I think that worked to stick the magnets to the flask.
Here’s a picture, it ain’t elegant but it works.
The steel is a piece of a coffee can, and yes, I put the Velcro on crooked. After several glue failures I was too aggravated to see straight.
I set the flask so you could see the magnets.
If anyone cares I will tell you what’s in the flask - no performance enhancing drugs.
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