Cal Spas Hot Tubs, Spas and Swim Spas for Sale. Cal Spas FA750L featured on DIY Turf War. Cal Spas -The Calspas FA750L Spa featured on DIY Turf War.mp4. Cal Spas was featured on the "Mexico Retreats" episode of Turf War, which aired on May 23, 2011. This episode featured a Cal Spas FA750L hot tub as a key component of this backyard makeover. Visit us at www.calspas.com.