[andreaintrevado]

I have a duplex and when the upstairs apartment turns on the hot water I hear a LOUD ticking/banging noise in my basement (2 floors down). A plumber told me it's the copper expanding and hitting the pipe clips and that I have to loosen the clips…..
I have located on approximately which wall the noise is concentrated….But it could be on either or both of my floors…
How do I find out where the clips are too tight without ripping down two full walls (upstairs and downstairs)??

[ballengerb1]

Check with your local building department to see if they still have your blue prints.

[ma0641]

Unless you have a set of prints, there is no way to tell where the straps may be too tight.

[ballengerb1]

Try a stethoscope on the wall. Unfortunately you will have to wait around until to other resident uses hot water. Who owns the building?