We recently added on to our log home. The new portion is log siding and the old is full log. We had the old portion sandblasted to remove the old oil. It had been covered with Behr oil (#15 and #16). After the sandblasting we had rain and the logs now are a little dirty looking. What should we do? I am not sure if they are just discolored or have some mildew. We were going to wash it before oiling. Should we clean it first? What type of stain/oil would you recommend? How long can we wa