Cleaning concrete / stone tiles
 

I have a huge plant pot outside my house with a couple of little holes in the bottom to let it drain. They got blocked and it filled up with water. Unblocked them and let all the water run out but when the water ran down some concrete / stone (not really sure which to be honest but they are outdoor tiles) steps it left brown soil/mud stains everywhere. Tried high pressure washing them and the stains will not come out. Anyone know what to use to remove the stains?

Cheers

Hire a Karcher steam cleaner.


my old fella bought one years ago - the big ones that the car valeters use, dont bother with the cheap small ones although they do work to a degree.

will bring it up a treat:thumb:

Pretty sure we used to use concrete cleaner to de-limescale pressure washers when I used to repair them.

Very acidic but worked a treat - just make sure you don't use it on an aluminum pump head - it will turn it to cheese!

Bleach!