1. prepare the screen would wash keeps the screen in the wash with water to wet
2. if the screen is wet grab soap then smeared into the surface of the screen until frothy then rinse the screen with water until the suds disappear
3. Put the screen d under / on the floor
after that take clothes and pour bleach taste at the top of the screen after that brush the surface of the screen until the screen surface d diazol slowly disappearing and then rinse with water
4. When the surface is still visible stains d diazol diazol spray stain spray to clean bird
