Dolchas wrote:
Hello!

Our shower floor is tiled and we don't get any mildew in the sanded
grout lines between the tiles, but we do have an unsightly amount of
mildew in the "silicon-ish" (not sure what the actual matrerial is)
caulking where the tiles hit the walls. I think I already know the
answer, but is there any miracle product that will get rid of that
mildew, or am I doomed to having to remove this mildewed caulking and
replace it with some mildew-resistant variety.

Thanks!

Chuck
The bottom joint should be GROUT not caulk. Grout is porous and will
allow the moisture soaking through the tile grout lines to the water
proof membrane to run down and drain out. Most people caulk this joint
and get the same result. The tile grout is NOT water proof unless
sealed with silicone and that needs to be re-applied every so often.
Remove the "caulk" and re-grout the joint properly. Tub/shower walls
are a "system" that is designed to shed water back to the tub or shower
pan where it will drain away.