These products work great with a motorhome with a built in propane tank, but require a bit more work when using on a trailer. I have a 120 gallon tank on my fiver. The output line was disconnected from my regulator, and the tank with associated regulator was hooked to it. I don't have to disconnect to fill the tank, so that works well for me. If I had to unhook the 100# tank to take it somewhere to be refilled, I would do as Glen did. Unhook one of the 20/30# tanks and use a long hose to the 100# tank. That will allow you to run off of the original tank long enough to get the 100# refilled.
I bought a Sturgi stay but it's not letting pressure through when hooked up to both a 30 and my 100. Does sitting in my lap with a hose hooked up just blowing thru it. Gonna have to try again on my day off.
OK got this issue figured out. The hose that goes to the regulator that came on the camper have some sort of a check valve in them. I took every thing apart and started blowing thru the hoses and if you blow to hard on them the get blocked. Blow the other way and it frees them up. Except for the side I was using. Changed the hose out and now everything's working like I want it to.