Fill a bucket with warm water and add 1 tbsp. of dish soap.
Spray the metal furniture with a garden hose, loosening any dirt and grime.
Dip a scrub sponge in the soapy water. Wipe down the metal patio furniture with the sponge, scrubbing away any tough dirt or rust. Rinse the dirty sponge in the bucket periodically to avoid spreading dirt around.
Rinse the soap from the patio furniture with the garden hose. Scrub and rinse the furniture again if any dirt or grime remains.
Dry the metal furniture thoroughly with a towel to prevent rust.