The supplies required to clean a stone patio include water, dish detergent, a scrub brush and liquid ammonia. Other necessary supplies include rubber cleaning gloves, eye protection, a sponge and a broom.
Effective stone patio cleaning begins with sweeping up loose debris and rinsing the stone with a hose. Stubborn dirt and grease typically respond well to scrubbing with liquid dish detergent, and a solution of 1/2 cup ammonia diluted in 1 gallon of water removes stains that resist the detergent.
Rinsing is extremely important when cleaning a stone patio. Thorough, frequent rinsing keeps the cleaning products from combining and releasing toxic fumes, and the final rinse removes dulling chemical residue.