Wondering if I can pick anyones brains. Could anyone tell me the best way to bring back the shine out of floor tiles. I have some old floor tiles along the hallway which are quite dingy but a nice feature of the house, I want to clean them right back which is proving more difficult than it sounds with jif, bleach, steam cleaning, trying everything. They appear to have ingressed discolouration and I want to descale the surface. I think what I need something more corrosive? Once done, I then want to shine them back up.
Appreciate any help.
Cheers, Craig.