Amazon.com: Drillbrush - Stiff Bristle Power Scrubber Cleaning Kit with Extension – Patio - Deck Brush - Spin Brush kit to Remove Ware and Tear from Garden Statues, Headstones, and Monuments : Industrial & Scientific
Amazon.com: Superio Deck Scrub Brush with Long Handle 48 Inches, Heavy Duty Stiff Bristles Grout Scrubber with Scraper - Cleans Hot Tub, Swimming Pool, Granite Tiles, Bathroom, Patio, Kitchen, Wall and Deck :
6" Medium Bristle Brush - RYOBI Tools
Rent scrubbing machine to scrub your deck - Bona.com