Good article on Helium Release Valves, smoke and mirrors:
http://www.hodinkee.com/blog/opinion-too-much-hot-air-about-helium-release-valves
@VanUden started
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Good article on Helium Release Valves, smoke and mirrors:
http://www.hodinkee.com/blog/opinion-too-much-hot-air-about-helium-release-valves