And while we're on the topic of gutters, I had lots of black streaks and dulling on my white gutters. Truthfully, they were hideous and really took away from the looks of the house. I found a product that removed all the ugly black streaks and restored the shine to new. One of those products I thought would not work but it did and far exceeded my expectations. One bottle did my entire house and it was easy. No elbow grease required. Worth every penny!
https://www.amazon.com/KRUD-KUTTER-...888199&s=gateway&sprefix=Krud+,aps,154&sr=8-1
https://www.amazon.com/KRUD-KUTTER-...888199&s=gateway&sprefix=Krud+,aps,154&sr=8-1