On 27/08/2018 12:21, Endulini wrote:
Hi Folks,

I would like to clean a build up of moss off my patio area, I have a
power-washer to do the final clean but it has struggled in the past with
some of the larger build up of moss in some areas. Can anyone recommend any
of the cleaning agents that you water/brush on and leave to dry or are they
a much-of-a-muchness? I'm not bothered by whether it is 'organic' or
'chemical-free' or any of that nonsense, I just want something that works.

Cheers

Your question seems to have been hijacked to lawn care! Had major
problem with assorted stains incuding the dreaded black lichen. After
research I used simple undiluted kitchen bleach brushed onto a moistened
surface which is then kept damp with fine spray if needed. Brush firmly
but don't go mad. Leave for a couple of hours, repeat if needed then
hose off. Had no effect on grass where pavers met the lawn.