Originally Posted by P-J
Just a heads up about Cornelius regulators. The connector to the co2 tank valve has a built in gasket that provides the seal. Click the LINK
to see it in place.
This seal can be a serious PITA if it is compromised in any way. For me, and in my experience, the only reliable way is to replace the seal with the proper one that fits in the stem groove. There is a seal replacement KIT
that can be easily used to solve the problem.
Hope this makes sense and helps.
I had a older style built in oring on the regulator stem.
I have those seal adapter things on the tanks I rent.
I could not get a good seal though so I pulled them out of the tank and put in a plain no oring regulator stem.
I put in a regular oring between the plain stem and plain stem and cranked it tight... and it sealed. It was about the size of the ball lock oring.
I have had no luck with fiber washers or nylon washers to get a good seal with CO2 regulators... maybe it is something I am doing as I read with these seal things you have to have them not too tight or too lose.