JARblue

I've never had any troubles with that. I even have two bottles with very different types of plastic tubes (one is very soft and one is quite stiff) and both work just fine. The bottles have magnets and hang on metal undercarriage so the tube isn't having to support any weight. I find myself adjusting the location and angle of the bottle as well as the tube routing to help it stay on the bleeder valve. I doubt either tube would fit well enough on the bleeder valve to be able to support its own weight while connected and hanging off the bleeder valve.

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