I sprayed atrazine last Thursday and left about 20 galls in the tank until today because I had to go out of town for a week. I rinsed the tank and noticed some white residue in the bottom. It came out pretty easy with the water hose. I flushed all the lines until the water appeared clear ( I had blue tracker in the mix ). I''m wondering though if I have the same residue inside the spray hose. I need to spray some 3-way this weekend for some bermuda and I'm a little worried about what's left in the spray line. Am I okay? If not, how do I make sure the line's clean?