Are you talking about fly/spider poop (round circles between 1 and 4 mm across) ?Some never seem to completely come out but if you wet frame or sill then g101 and scrub then rinse you'll get 99% of dirt and grimeDarran
Quote from: Smudger on October 11, 2013, 07:23:55 pmAre you talking about fly/spider poop (round circles between 1 and 4 mm across) ?Some never seem to completely come out but if you wet frame or sill then g101 and scrub then rinse you'll get 99% of dirt and grimeDarranDon't panic. You will find that 99% of the stains will be gone come the end of winter. In eight years I haven't had one complaint. These marks, mainly from spider poo are the worst at this time of the year.I can only imagine that the winter UV rays bleach the stains during this time.
if you really want to take them off ciff will do it , leaves can leave marks and shet as well