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Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
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Re: DIY - discussion on building a DIY hookah diving compressor
...which may be why the ebay sellers plumb it to a snorkel, instead of a real regulator.
I guarantee that's the reason. And since there is no regulator, excess air (assuming there is any) must be continuously exhausted. If you ever dived with a regulator that was "free-flowing", you know what a PITA this is.