brown calcium build-up in the toilet bowl
We moved into this 2-year old home 6 weeks ago. During the
inspection we noticed this dark brown calcium build-up dirt
inside every (4 of them) toilet bowl where the water remains. We thought Clorox bleach or C-L-R would clean it. It did not.
We tried Vinegar and did not work. Does anyone know what
will remove this stain? Any branded product? Generic chemicals? Any suggestions will be appreciated.