Originally Posted by ZiggySmerlap
On my 2016 Bounder I have the Extended Stay Connection on the Propane tank which also allows me to connect a hose to run my Camp Chef Grill. The Grill has it's on regulator and works great. The problem is when I go to disconnect the hose there is so much pressure in the hose it comes blasting out of the hose as soon as I start to disconnect, about froze my fingers off the first time and then had to change underwear
. If I shut off the propane at the main tank, there is still so much pressure in the line not to mention that the propane line in the bus is bled off. Got to be a way to put a valve on or in line to the BBQ connection so I could at least bleed or burn off the propane in the line to the BBQ without freezing my fingers off or setting fire to myself
The connector on the Extend-a-Stay for your grill is like the one on a throw away bottle. When using a bottle, you will get a brief "Pfft" of escaping pressurized gas as the bottle is disconnected. Typically, the small bottles are connected very close to the regulator.
In your set up, the regulator is quite a distance from the high pressure tank due to the length of hose. The pressure inside the hose is very high, up until the regulator, where it is reduced to 0.39 psi for the grill burner. Turn off the grill and the high pressure gas remains in the hose. Turn off the tank knob, and the pressure remains high in the hose. Start to disconnect the hose from the Extend fitting, and the gas escapes back onto your hands.
You should have a capped port on the Extend-a-Stay for connection directly to a remote tank. Turn off the grill, turn off the main tank knob, and slowly loosen/remove the cap. That will allow the gas from the hose to bleed out. Then, remove the grill hose from the Extend-a-Stay. Don't forget to turn the main tank valve back ON.
You could put a ball valve on a T in the line to the grill, as you suggest. You would still have to turn off the main tank knob, then open the ball valve to bleed the gas in the line. However, as I envision your set up, the main line to the bus will still bleed off because you are reducing pressure directly from the inlet side of the coach pressure regulator, which is on the other end of the Extend-a-Stay.