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Looking for a general, all-purpose solution for cleaning the outside of your house? Here's a handy recipe that will clean almost anything- be it stucco, siding, or a concrete patio. You should have everything you need in your garage or basement, or even under your kitchen sink!
1/3 cup of powdered laundry detergent
2/3 cup of powdered household detergent
1 gallon of water
Mix it all together, put on a pair of rubber gloves, and you're good to go! That's all there is to it! Apply the solution to a bristle brush to scrub out the stains. If you're cleaning something that's mildewed, use less water and add about a pint of household bleach.