I have an upstairs toilet that starts growing what I believe to be mold inside
of the bowl.It's black in color. It gets cleaned on the same schedule as the
other toilets in the house. Can anyone tell me what it is?
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.