By Zeebrugger
Last time I looked at the forum someone had a problem
with patio fungus, algae, lichen etc. It appears on my block
paving in white spots or circles. I like to know if they found the answer to the problem. I've tried Patio Magic and scrubbed at part of it but it doesn't seem to be moving it.
10 Mar, 2014
Answers
Have you tried a power wash.
10 Mar, 2014
Bamboo the picture looks just like the lichen we get. We had our patio professionally cleaned last year and it all came off. Sorry I don't know what they did but yes it is possible!
10 Mar, 2014
You could try a strong solution of household bleach. Use a stiff-bristled brush to work it in, leave it for an hour or two and hose it off. If that fails then try a jet washer.
10 Mar, 2014
Previous question
I can't magnify the picture and still get a clear look at the white marks, so really need a good, clear close up, but it may be that the white marks are salts from the bricks. If they are definitely live growths of something rather than staining within the bricks themselves, try liquid moss killer, made up according to the instructions.
10 Mar, 2014