Dude, you can’t rinse moss balls with chlorine water and just walk away with the cheque…
You gotta rub off the moss balls with a brush. Yes, you heard me right – you have to manually brush off the large moss chunks (and if you care about what you do the small ones too) and then spray the roof.
Where do you live getting the moss balls vs the black streaks? I live in the Pacific N/W, guessing you do too.
