Side passages never see the sun, so the algae goes deep. Surface cleaner, hand lance for the edges by the wall, then re-sanded.
Side path block paving
A shaded side path between garage and house, dark with algae, cleaned back to red and re-sanded.
A shaded side path between garage and house, dark with algae, cleaned back to red and re-sanded.
Side passages never see the sun, so the algae goes deep. Surface cleaner, hand lance for the edges by the wall, then re-sanded.