Posted by Wayne on December 05, 2001 at 09:26:44:
In Reply to: Membrane's Cost Effective ?? posted by Marc Hall on December 04, 2001 at 14:24:21:
Many shops sell oxygen as well as nitrox and air. If you use a membrane, there is no O2 available for sale. That is why some of the shops I have talked to have not wanted to change to a membrane for those of us who want to use our regular tanks.
Wayne