How to Bleed RV Propane Lines After Replacing the Tank
If you use an RV, chances are you will need to refill your propane tanks eventually. Propane gas, also known as LP Gas, is safe to use in RV's as cylinders can be disconnected and refilled in many locations. Propane is sold by either the pound or the gallon with a pound being the most common reference today. Bleeding the propane lines in your RV after replacing the tank is a straightforward process.
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Instructions
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Close the valve on the tank by turning the valve located on the top of the tank. Disconnect the used propane cylinder from it's storage location. You will need to unscrew the connection by using a wrench. Take the cylinder to have it either refilled or exchanged. Be careful to not kink the tubing that connects your cylinder 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.
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Install the full cylinder into its proper location. Carefully reconnect the hose to the cylinder and check for leaks. An easy method to check for leaks is to use a bit of dish soap in water and drizzle a bit of the liquid on all joints. Turn the valve on top of the tank and watch for bubbles to appear. If you see any bubbles, you have a leak. Shut the valve and tighten your fittings once again. It is a good idea to check any place the tubing connects 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.
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Bleed your propane lines inside the RV by lighting a burner on your stove top. The lines to the stove are larger than the ones to the refrigerator and by starting with a burner, you will be able to bleed any air from the system more rapidly than by starting with the refrigerator or other appliance. Leave the burner on until the flame is stable. Your lines are now recharged with propane.
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Tips & Warnings
Propane lines are threaded backwards from water lines. Be careful when connecting or disconnecting your cylinder.
When a propane cylinder is running low, you may smell the propane. Check your tank to see if it is near empty.
Do not smoke or use any source of open flame while changing your propane tank or checking for leaks.
If you smell propane or LP Gas at any time, stop and check for leaks.
Do not use an open flame to check for leaks or to light the stove burner. Use the automatic ignition, if available.
