Hi,
Normally the regulator is attached directly to the 5 gallon tank, and then will go to a switch over tank selector under low propane pressure, then to the pipe that goes to all the appliances. This avoids expensive high pressure propane lines, that would need to be rated at 400 - 500 PSI.
Can you post a picture? That would be first posted to something like PhotoBucket.com and make sure that it is listed as "Anyone can look at it" - so it is not password protected.
Then copy the URL of that picture (CTRL C) and go to the "Advanced post" section, and click on that. Click on the little postcard looking thing, and it will open a new subroutine. On the top line, click on that then (CTRL V) to paste the URL in that box. Put height and width in (not to exceed 600) 500 high and 600 wide usually works well for me.
A picture will help a lot. You might also be looking at the propane leak detector shut off valve. It will run on 12 VDC, so will have two wires going to it. This keeps the propane on until the leak detector trips, then shuts off the valve and propane flow.
Good luck,
Fred.
