Weber · Spirit Grills
Propane may leak from the LP tank valve outlet if an incorrect or missing dust cap is used when the tank is not connected to the grill.
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Ensure that only the dust cap provided with the LP tank valve is installed when the tank is not in use.
Remove any other types of caps or plugs that may be causing the leakage.
If leakage is suspected or confirmed, follow the steps for 'Smell gas' immediately.
Always store disconnected LP tanks outdoors in a well-ventilated area.