Hi guys,
I've got a job coming up to clean the wall attached as part of pressure washing their monobloc driveway. I know the owners have given it a go with a karcher to no avail.
I'm not planning to use pressure at risk of damaging the brick so wondering what chemicals would best remove the discolouration. Any help is appreciated.
I've got a job coming up to clean the wall attached as part of pressure washing their monobloc driveway. I know the owners have given it a go with a karcher to no avail.
I'm not planning to use pressure at risk of damaging the brick so wondering what chemicals would best remove the discolouration. Any help is appreciated.