This has bothered me for years. The previous owner somehow melted the wax
ring under this toilet. The wax flowed in the grout between the tiles near
the rear of the toilet and discolored/darkened the grout.

How can I get the wax out of the grout? I tried cleaning compounds without
results. I am afraid, if I use paint thinner or Acetone, the wax will spread
further, making things worse.

Since the affected grout is darkened, any future buyer will suspect that
there is a leak under the toilet. (Just like wax, water also makes grout
look dark.)

http://img651.imageshack.us/img651/9421/1000616y.jpg

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Walter
www.rationality.net