I have a real estate lady that throws me a little work asking about trying to lighten up travertine. She thinks an enhancer was used but can't tell me when/what/who. Has anybody ran into this before and found a successful method? I'm thinking about stripping the floor and putting fans on it for as long as the customer will let me. I'm not adverse to grinding and repolishing either (if that is what it would take) to get the result the customer wants. The situation seems like an open check book, at the same time most efficient if somebody had a way would be great.

