Hi all
hope some one can help as you all did when i laid the patio
i have 36sqm of Indian sandstone laid on a full bed and pointed with cement
it is mostly all East facing
some of the lighter/whiter flags are now going green with some type of thin layer of Algae
can any one tell me how to get this off and do i need to do it once or so a year or will one go get ride of it???
PLEASE IGNORE
i was being blonde and forgot to go to page 2 when looking for the answer to my original posting
the question has been answered so please dont waste your time replying here
Cheers
Craig