mold behind drywall near plumbing 21

https://blast-wiki.win/index.php/How_We_Found_and_Removed_Mold_Behind_Drywall_Near_Plumbing_in_a_St._Louis_Rental

There's a musty smell in the bathroom that's been getting worse, and I finally found the source when I noticed a soft spot near the shower wall. Pulled back a corner of the drywall and found black mold creeping up from where the plumbing pipe enters the wall—probably a slow leak that's been going on for months behind the tile.