Hi Phil, never would have guessed that was you. Any way, the check valve works OK. I've actually got one on a plane I got from Harold and it works fine. It doesn't have a "T" it the line though. You would end up with 2 DOT's, one filler and one vent. Not too bad really if you want to consider it. Get the parts and let me know some day when you can get by SAM and I'd be glad to show you how it hooks up personally. If you decide you don't like it, it would be easy to remove.
Good to hear from you.