Quote:
Originally Posted by finflippers
Quote:
Originally Posted by talonraid
The first guy told me that if after pressing and releasing the purge the reg doesn't continue to free-flow then it's not adjusted correctly.
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A regulator should not continue to free flow after releasing the purge button. |
That is not correct. Many 2nds employ a venturi boost (assist) design which allow the air flow thru the 2nd to create a vacuum on the diaphragm which will help maintain the airflow. If this occurs and the mouthpiece is not being blocked, the vacuum will be maintained and the air will continue to flow (freeflow). In some designs, the effect can be so great as the result in positive pressure breathing. That is you will have the sensation of gas being forced into your mouth.