Since 1969 Patio Pools and Spas has been Southern Arizona?s locally owned and operated trusted source for pools spas hot-tubs chemicals and supplies. We are located in Tucson and Sierra Vista. We are a BioGuard and SpaGuard Platinum dealer focused on customer satisfaction. We use BioGuard's exclusive ALEX software for in-depth water analysis. Bring in a water sample for a free analysis using the fastest and most accurate water testing system in the industry.