[rexschaller]

Can anyone give me some advice on how best to clean porous kitchen and bathroom/toilet floor tiles as often paint and grout has sunken into the tile surface and we find it extremely difficult to get out.  Thanks

[gerrystyles]

In an ideal world the tiles would have been sealed before the grout was applied, You could try Prochem QMT Stone Clean applied with a Tank Scrubber. Extract with a Wet Vac. Then Seal with Prochem Stone Seal

Gerry