Are you looking for the best cleaning solution for the outside of your home? If you are tired of seeing mildew, mold, and dirt sitting on your paint then I have found the best mixture to wash away all the unwanted filth. Using this concoction may allow you to wash your home with just a garden hose, and skip using a pressure washer.
Mix one part bleach with three parts lukewarm water in a large bucket, then add 1/2 cup of TSP. Stir slowly and thoroughly. If using a pump sprayer, spray the solution on one small area at a time, let it sit for 15 minutes and then rinse it off with a garden hose.
The bleach will kill the mold and mildew while the powerful TSP will dissolve the dirt and grime.
The bleach/TSP cleaning solution works great on painted siding, brick, wood, and masonry.