Now available in 2015 is PristineLithium, part of PristineBlue’s expanded line of chlorine-free products. PristineLithium is a 35 percent lithium hypochlorite shock that is used for routine maintenance — or just for start-up and troubleshooting, if necessary. It’s available in 1 pound 6x1 pound multi-pack box, and 20-pound containers.

Contact: (800) 257-9283; www.pristineblue.com