What is one of the most common methods for checking for gas leaks?

Using a soap and water solution is one of the most common methods for checking for gas leaks because it provides a simple and effective visual indication of gas escaping from a pipe or appliance. When a soap solution is applied to suspected leak areas, the escaping gas bubbles the soap solution, indicating the presence and location of the leak. This method is widely used due to its ease of use and low cost, making it accessible for both professionals and individuals handling gas appliances.

Other tools and methods exist, but they tend to be more specialized or expensive. For example, a sensitive electronic gas detector can precisely identify gas leaks, but it may not be as available for general use. Using a temperature probe and a pressure gauge can assist in diagnosing gas systems but are not specifically used for direct leak detection in the same straightforward manner as a soap and water solution.