Water hammer is often caused by loose hot and cold water pipes.
Determining the location of those loose pipes in a stud wall can be challenging, but here are three methods that can help.
One method is to use a stud finder. A stud finder is a tool that can detect the location of studs, or the framing members, behind the drywall. Pipes are often run along the studs, so by finding the location of the studs, you can also determine the likely location of the pipes.
Another method is to tap on the wall and listen for a dull or hollow sound. Loose pipes will often make a rattling noise when they are tapped, whereas tight pipes will produce a solid sound. This method can be useful for locating the general area where the loose pipe is located.
A third method is to use a number of pipe location tools which are specifically designed to detect the location of pipes within walls. This collection of tools includes an electronic charge running through the pipe that emits a signal that is picked up by a sensor that’s run along the surface of the wall, which can help to locate the position of pipes with reasonable accuracy. Some listening devices can also help.
It’s important to note that it might be difficult to locate the exact spot where the pipe is loose, it’s recommended to hire a professional plumber to help you locate the problem and fix it.
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