I have power washed and stained decks part-time for over 22 years.
Besides my own house and a few friends houses, I haven’t cleaned many houses. This summer I’ve done about five.
I cleaned this house using a 3:1 water to bleach mix plus surfactant. After rinsing the front of the house, I moved on to the next side of the house. When I came back about 15 minutes later I noticed these streaks. They were not there before.
First, I tried rinsing with water. Then I tried my house mix. Then I tried straight bleach. Nothing touched it.
Additionally, where the eave meets the siding, there was some residue I couldn’t get rid of as well. You can see it better on the close-up pics.
Any ideas on what to use to get rid of the stain? I have been reading on this forum for the past month. And I finally created a user name/login since I saw that people like to know that newbs are researching things first and taking the time to read.
Thankfully, this is my mom’s house.