Propane is a colorless and odorless gas that, in the liquefied state, resembles water. Mercaptan, an odorant described by many people as having an odor similar to "rotten eggs," is added as a warning agent. When a propane container is low, occassionally there may be a concentration of an onion or garlic-like odor, which can be mistaken for a propane gas leak. After the propane container has been refueld, the odor will usually disappear. If not, turn off the valve(s) and have the propane system inspected by your dealer or qualified propane service representative.
Propane or LP (liquefied petroleum) gas is a clean and effiecient form of energy when proper handling and safety precautions are observed. The propane system in your RV furnishes the fuel for cooking, heating and hot water. Propane can also be used as an alternative energy source for refrigeration. The propane fuel system is compromised of numerous components such as the propane container, hoses, the propane gas regulator, piping and copper tubing lines to each appliance. Propane is heavier than air; the gas tends to flow to lower areas and will sometimes pocket in these low areas, such as the floor.
Although both Grand Design RV and your selling dealer carefully test for leakage, travel vibrations can loosen fittings. Have the propane system checked at all connections soon after the purchase of your RV, and after the initial filling of the propane tanks. Continued periodic checks of the propane system at 5,000 miles of travel (or at least once a year), by a qualified propane service represenatives as part of your normal maintenance is recommended.