I laid a patio last week. All went well, but the owner insisted that he
finsihed the grouting between the slabs.
OK, no problem.Leave him to it.
The slabs have a yellow tinge to them, and the owner has now told me he
has grey concrete stains on them from over spill when he grouted, and
will I go round and have a look.
So, whats the best way of getting the light discolouring off of these
slabs?
Ta
Alan.

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