What is the best product for cleaning a patio?
There is only only one product that successfully works on algae on patios and that is muriatic/ hydrochloric acid. This is bought in builders merchants, stores, and gardening centers, and is sold as ” brick clean ” ” patio clean “or similar. It is suitably diluted for home use, but should still be treated with care , especially pets getting it on their feet. In Uk it can be biought in B & Q . In USA probably Lowes or the like, you may have to ask a supervisor. LATER Sunday nite……. The acid burns the spores that are like roots for the algae, as the acid penetrates the surface.
