How do I perform a leak test on my grill?

Make a soap solution of one part liquid detergent and one part water, then apply it to all gas connections with all control valves in the OFF position and the gas supply turned on. Soap bubbles will appear at any location where a leak is present. If a leak is found, immediately turn off the gas supply, tighten the leaky fittings, and retest. Never perform a leak test with an open flame. (Page 9)