Reply To: New Huma Regulator Issues
Have you tried putting the airtube back together in original configuration. Then add a little air to see if it still leaks?
If it still leaks it should be a nicked O ring. If not it is the assembly of the reg setup.
The instructions state leaving the valve a paper thickness out for venting. Is the space you are leaving too much allowing the air to push past the seal?
It also calls for silicone grease on the valve face to avoid twisting the reg o ring. Did you CK to see if that did not happen.