fungus or mildew or mold on vinyl siding
the north side of my house has an ell and the siding in that section is dark greenish from mold or mildew or fungus. it's been like this for 2 years. the vinyl was installed in 1999.
can i wash the vinyl siding with a solution of 1 part white vinegar 3 parts water to clean it? i suspect a product called TSP would work (?) but vinegar is very inexpensive.
is there a simple household product that works other than vinegar?
i have grass growing up to the foundation so whatever i use i do not want it to harm the grass or change the color of the siding (it's light grey).