How can I easily clean solar panels that are high on a pitched roof with lichen on some?
We need to get up on the steep pitched roof to clean our solar panels. I want to use a water blaster from afar, almost like rain but have been told to use a hose instead. I’m happy with that but due to dirt and lichen growing on some panels, I’m not sure the hose and its pressure will be sufficient. It’s too steep sponge with no room for movement. Thinking about an extendable water hose brush but not sure if the bristles on the brush are soft enough.