Wanderlust World Wanderlust World Close the valve on the top of the empty RV propane tank. Disconnect the used propane tank from its storage location. You will need to unscrew the connection by using a wrench. Be careful to not kink the copper tubing that connects your tank to the regulator. The tubing is normally made from a thin copper alloy and will bend easily. If it is kinked or cracked, you will have to replace it.
Transport the empty RV propane tank to a propane dealer. Be sure when you are transporting the propane tank that it cannot roll around because this could damage the tank. Authorized agents will connect your tank to the supply tank. While it is filling, the 30-lb. propane tank will be vented to allow air to escape. Typically, the tank is set on a large scale so that the weight of the tank can be monitored while it is filling.
After filling, be sure the vent and the valve are both closed before transporting the propane tank back to your RV.
Reconnect the propane tank to the RV by tightening the fitting into the valve. Turn the propane valve on one quarter of a turn. Use the soapy water to test for leaks. If you see any bubbles or smell propane, close valve tightly and re-tighten the connection with the wrench. It is a good idea to check any place the tubing connects all the way back to the regulator for leaks by using the soapy water and watching for bubbles.
If you do not have any bubbles, turn the propane valve to completely open it.