I'm not sure if this is the right forum to ask this question. If not could you point me in the right direction?
How do we get rid of orange mold under the toilet?
We've tried scraping it off with a knife and putting bleach where we can, but it still comes back weekly.
There are also calcium deposits in some of the grooves in the tile surrounding our toilet.
UPDATE: The "mold" in the picture ended up being that the plumber installed wood shims when our house was built only about 1.5 years ago. The wood shims were removed.
SECOND UPDATE: The builder came back again because it really was mild (happened again with plastic shims). A piece on the toilet (not sure of its name) was defective--the part of the toilet that connects to the flange. Builder said they had never seen this before.