I'm quite new to pressure washing and a customer has some spots of tar on a some of the sandstone papers, any ideas for a good product/method to get this off please.
It has just been laid so is covered in a layer of dried concrete residue, would a hypo wash sort this out beforehand or just straight pressure washing
Video is attached also...
It has just been laid so is covered in a layer of dried concrete residue, would a hypo wash sort this out beforehand or just straight pressure washing
Video is attached also...