We had our work cut out on this one. This driveway was covered in Black Spot Lichen, mainly on the edge of each block paver. The rear patio was looking very tired with plenty of algae growth - all safely cleaned and brought back to life.. Thanks for posting a review John, really nice of you.
We used our chemical surface cleaning system to remove all the black spot lichen from the edge of the block pavers which pressure washing alone will not do. The results speak for themselves.