What is a common method for detecting leaks in a plumbing system?

Using soapy water to check for bubbles is a widely recognized and effective method for detecting leaks in a plumbing system. The principle behind this technique is straightforward: when soapy water is applied to a suspected leak point, the presence of a leak will cause bubbles to form in the soapy mixture, clearly indicating the location of the leak. This method is particularly useful for small leaks or in areas where visual inspection may not be sufficient, as it does not require specialized equipment and can be performed easily by anyone with minimal plumbing knowledge.

In addition, soapy water is safe to use and does not damage the surrounding plumbing components, making it an ideal choice for both professional plumbers and DIY homeowners. This method is also economical, allowing for quick and effective leak detection without the need for advanced technology or costly tools.