Step 1
Place the secondary coupler over the top of the tank-mounted withdrawal valve and twist clockwise to join the two valves.
Step 2
Connect the other end of the hose to a transfer tank. Transfer tanks are small cylinders that may be used in forklifts, gas grills or other propane-powered appliances.
Step 3
Turn the hose valve parallel to the hose to begin drawing liquid propane from the large tank into the transfer tank. Turn the valve perpendicular to the hose to stop the flow.