Drip from behind the wall

[jbrianchamberlin]

When the sink runs upstairs I can hear a drip somewhere in the wall. Can't find any water at the base of the wall or in the basement but I think its a drip. What can I do besides breaking up the wall? I can't even tell exactly where it is.

 

[Matt30]

Any signs of water? You may be hearing water draining thru the stack

 

[jbrianchamberlin]

Any signs of water? You may be hearing water draining thru the stack

No signs of water yet.

 

[Mr_David]

Gonna presume it's plastic pipe in walls. common thing is when pipe expands an contracts it is tight against wood at some point and it ticks a little as it moves. Water reveals it self rather quickly if it is actually leaking and you rarely hear it dripping.