[header] How to clean sunbrella fabric [title] Wipe daily dirt and grime off of the fabric. [step] As soon as you notice dirt or grime on your sunbrella fabric, brush it off with a soft bristle brush. Every week or so, spray a basic soapy water cleanser over the fabric and use a sponge to rub the cleanser in. 
This should bring the dirt to the surface of the fabric. [substeps] Use a mild dishwashing soap that you'd usually use for handwashing your dishes.