HELP! This may be less of a power washing problem and more of a biology problem - BUT, I need help. Excited about my new home, I became very discouraged last year when I began to notice the little black dots spreading. I have vinyl siding, but this stuff is now everywhere. I felt responsible when friend parked his car in my driveway when he went on a trip, only to return to find the little black dots all over his car! We had a wet summer last year in Pennsylvania, but I also thought that I saw an increase of the dots after my lawn was treated. We live near an airport, and initially I thought that it was airplane fuel or oil. -I've asked several neighbors, and NOone else has this problem.

As a single, lady on a tight budget, trying to keep my property looking nice - I don't know what to do. I would be willing to try to find someone who would use the mildewcide - but more importanly, I am looking for a long-term solution. How can I get it to stop? I have had the same mulch for 3 years now - should I dig it up and dispose of it? Spray it w/ the mildewside - or dig it up and then spray around my house to try to kill off any residue from the old mulch? I don't want to spend teh $$ cleaning my "spots" if they are just going to keep returning. Should I get out now, and sell my house?? Are they going to take over and make big black spots all over the place. Help!
-Robin