I pressurized the water system in my 05 Grandby and quickly had water shooting out from a cabinet. It turns out there's a little silver ring that is a compression fitting that failed so a joint on at elbow separated. Any ideas on what that ring is called and where I might find one? The nearest parts spot, a Trailer Source Store had the whole elbow which would mean cutting the band and re-crimping a pex joint deep in a cabinet, a bad choice for me. Thanks Guys, Six5