Hey,
There's been this black staining on our porch since we got the place, which I think (but don't know) might be due to a gutter that occasionally overflows.
Do you think it's possible to clean it off? Acid cleaner maybe?
There's been this black staining on our porch since we got the place, which I think (but don't know) might be due to a gutter that occasionally overflows.
Do you think it's possible to clean it off? Acid cleaner maybe?