Originally Posted by dm5gangster
I have fairly new GA tank and the new myth reg and at practice yesterday the tank started leaking from the hole right behind the gauge. What do I need to do to fix it.
Venting through the hole indicates that the hp o-ring (small black ring on piston) has been compromised, either through a dirty fill or a defect in the ring. Venting is the internal safety alerting you of a potential "spike" eventually. Suggested action is to replace the o-ring , available from GA , or in the case of contaminents causing abrasion on the surfaces replacing the piston and retainer as a set. You can send it to us at GA Illinois for warranty service if you are unsure.