Inside a bottle air vent and plumbing ramble. (No electronics whatsoever.)

This video is mainly about an automatic air vent that allows air to escape from a closed loop water circulation system. It kinda went of at a tangent initially with some JG Speedfit fittings and the way they work.
Being used to working with copper pipe and compression fittings I'm having to muster up the courage to use these simpler push-together fittings.

Here's a video where Ultimate-Handyman tests a push on fitting to failure.
https://www.youtube.com/watch?v=I59OeSwrhEc

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http://www.bigclive.com/coffee.htm
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