Looking for suggestions on repairing this. Recently bought house and noticed this gem at the bottom of the bathtub. Not sure what the material is but it's soft at this point. Above it is tile grout. I was planning to caulk around the grout/shower edge when I noticed it.
Obviously remove the material but then what would you do? Not wanting to go on a fishing expedition for other problems really.
https://imgur.com/a/dBCOs2d
Obviously remove the material but then what would you do? Not wanting to go on a fishing expedition for other problems really.
https://imgur.com/a/dBCOs2d