The propane system
The camp has two separate propane systems. Each system consists of a pair of 20-pound tanks connected to a single valve. However, each of the two systems is blocked on the left side. Therefore, in each system, propane will only flow from the tank on the right side.
The system on the left supplies the refrigerator:
How to replace a tank
When a system’s pressure indicator shows red, the tank on the right is empty and must be replaced as follows:
Disconnect the empty tank from the system by gently unscrewing the connector.
Connect the replacement tank to the system by gently screwing the connector into place. Do not over-tighten the connector; it may crack.
Open the replacement tank by turning the knob on its top.
Always leave two tanks connected to each propane system, and be certain that the empty tank on the left side of each system remains closed. Otherwise, the system may lose pressure as the propane drawn from the tank on the right side runs into the empty tank on the left side.
After switching tanks, you will need to restart the refrigerator or the stove, as applicable.
Troubleshooting
On occasion, propane will not draw from a full tank through the regulator and into the pipes. This may indicate a blockage in the pigtail—the flexible hose that connects the tank to the regulator assembly—or in the regulator itself. It may be possible to clear a blockage by disconnecting the pigtail from the tank and blowing compressed air into the pigtail.