Propane tank valve

Here's a brief description of how the valve works and how to use it, starting with two full tanks:

1. Once both tanks are installed and connected to the regulator/switchover valve.
2. Point the valve to either tank, let's say the left one in this case. Now the indicator will show green (good pressure/volume) and the trailer will draw from this tank only.
3. Once the left tank has nearly emptied, the indicator will turn red and the trailer will now automatically draw from the right tank.
4. Now, point the valve to the right tank, indicator will go back to green.
5. Close valve on top of left (empty) tank, disconnect from the regulator/switchover valve, and refill/replace the left tank.
6. Run off of the right tank until the indicator goes red again.
7. Point the valve to the left tank, indicator will go back to green.
8. Close valve on top of right tank, disconnect, refill/replace.

Just keep repeating this cycle and you should never have a cold night of sleeping.