Feeding pollen subs inside the hive in areas with SHB is a recipe for trouble. Therefore, I bought the pollen feeder sold by Mann Lake in order to open feed pollen. It works well but I did pretty good before I bought it by just placing the pollen sub in a 5 gallon bucket that was laid on its side. This keeps dew, and even rain out, if the bucket is placed so that the opening is downhill. I still use this method in out yards where theft is a problem.