Bobbo wrote:
My MH has a 1 valve system, but I have a PEX Flair It shutoff in a baggy zip tied to the backcheck valve, just waiting for the valve to fail. I will go to a 2 valve system.

I just picked up one of those at the local hardware store for nine dollars. The RV store wanted almost twenty for the same thing! All I need to do now is find the time to rework the plumbing. It shouldn't take long but if you seen the picture I posted on the 1st page -- it's a tight area to work in. I see my self cursing a bunch when I finally get to it.