Cloudy dark marks on honey coloured matt ceramic t
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                    | Asked by Jane Dagleish from Isle of Lewis: | 
                    Matt ceramic floor tiles laid throughout house with underfloor  heating ,heavy duty areas showing cloudy dark marks which are almost impossible to remove .have tried a variety  of products with varying  results .the best I can do is on hands & knees with a scrubbing brush & a product  called     HG power cleaner no 19 .I normally use a steam cleaner  ,  please advise1553 | 
                
                
                    
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                | TileProf says: | 
                Hi Jane,
  Best to use a Grout remover like the one below, if however it was a flexible grout then I will need to go through the process with you as it is a bit more complicated, call us on 0845 6524652 if a flexible grout was used.
Regards Russell at Tile Doctor
http://www.tiledoctor.co.uk/AcidCleaner.html | 
            
            
                
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