What is a ';green'; way to get graffiti spray paint off vinyl siding?

add green food dye to bleachWhat is a ';green'; way to get graffiti spray paint off vinyl siding?
There is a technique using dry ice granuals instead of sand for ';sand blasting'; You will have to use the web to find someone using this method.





What is a ';green'; way to get graffiti spray paint off vinyl siding?
go to a paint store to get the right or you could harm the paint with the wrong stuff.