1. Add 1 quart of liquid chlorine bleach to 3 quarts of warm water.

2. Add 1/3 cup of powdered laundry detergent.

3. Mix thoroughly and place in a spray bottle.

4. Spray the mixture onto the mildewed area. Let it sit until the
black mildew turns white. Rinse with fresh water.

Although this mixture is mild, don't forget to wear gloves and eye
protection and make sure the area is well ventilated. Make sure the
detergent you use is ammonia free. Mixing bleach with a solution
containing ammonia can release a dangerous gas harmful to your lungs.

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