I had lots of waterline leaks when I got my fiver. I cut out all the lines in the basement and routed them out of the way of things and used the Pex crimp rings that actually hold water. I don't know why they use the crimps that they do.
2009 Jayco Eagle Superlite 25.5 RKS
2008 Silverado 2500HD Z71 4x4 Duramax/Allison