in a situation at the moment, I work out the country and basically moved in a new house and have been getting building works done etc when i was away.
Anyway I was getting black slate tiles fitted in my kitchen, when i came home he had left word with my girlfriend the job was complete but all that needed done was the slate tiles cleaned and sealed and left the bottles for the job to be done by us (Strange, yes i know).
Anyways when i came home the tiles were heavy white with obvious grout residue so i followed the instructions on the bottle of the HG grout/stain remover to begin cleaning the tiles. Took me about 4/5 coats of this stuff before the tiles actually became normal.
After this i allowed a few days before sealing with LTP colour intesifier natural stone cleaner. Again i followed instructions and allowed to cure with more than enough time.
Now after all that it seems when im getting a splash of water on the floor or walking on the slate with say bare feet that sometimes like the outline comes up with the heavy white kind of grout stain again, ive tried to clean with clean water but the stain comes back to the white patch as before.
Totally not sure where to go from here any help will be much appriciated. Ive spoke with my gf who quickly poppped her head in etc when he was working away and had asked her if he sealed the tiles before laying she doesnt think so, could this be the problem?