Yesterday I did an inspection on a new build (year old). Floor was the finished slab, and in two of the bathrooms there was staining around the plumbing penetrations. (This pic is from the bathtub in the master). Has anyone seen this before and could offer expertise on a route cause?
Thank you for the quick response and your input. This was one if the first homes I have done with a home with a finished slab as the floor. (Family with 6 kids all under 9 and three dogs so it made sense lol)
Check the tub waste shoe under the tub. Putty dries out over time and it looks like the stain is heading in that direction. Next culprits is the overflow gasket, those things may leak if the tub if filled too high. Next check all the slipnut fititing. You really only need to report the evidence of prior leak and not the cause. Now if you see an active leak that’s different.