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Mould and yellowing

Asked by Helen from Leeds: Have inherited a shower with travertine tiles on moving house. Not sure if the tiles have been sealed and have problem with black spots and a general yellowing of tiles and grout. How can we tell if they are sealed and what should we then do? Thanks.

TileProf says: Hi Helen, Sounds like the sealer has started to come away, best to give them a good clean first with Oxy-pro this is not an Acid so you wont damage the Tiles only the dirt. see links below for more info on cleaning Travertine. regards Russell at Tile Doctor http://www.tiledoctor.co.uk/Travertine.html http://www.tiledoctor.co.uk/Oxy-Pro-Shower-Tile-Grout-Cleaner.asp

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