I have a slow leak in a stud wall; I know it is coming from 1 of 3 pipes. I can replace any of the pipes without breaking into the wall; however I need a way to find out which pipe is leaking. I can access the wall from the loft, or under the shower tray. There are no cross timbers in the area of interest, so access is easy.
I feel that an inspection camera would help, as I own a laptop I see no point in paying for a screen so am thinking of a USB based camera.