Algae on marble pavers

[Emminz 14]

I just cleaned a marble paver patio. It was pretty clean to begin with but most of it is under a deck and sees no sun. There were a few parts where it looked like algae was growing. I got most of it off but as you can see in the photo, there is still a little green staining. Is that a stain from the algea and how do i remove it? I did use some bleach, but that seemed to do nothing.

Thanks

Scott

[James 625]

Go back when it's completely dry. You might see a difference . I've done a few mable and limestone patios with brutal staining and the stain comes out when it's wet but looks good dry.

[Chappy 138]

We see the same thing on travertine. A little strong bleach will disappear it.

[tigerwash 14]

Try a strong SH mixture.