Lifeguards test sets Pulling a brick off the bottom of the swim pool. The digital badges discussed in the video are displayed below.Digital badge for deep water swimmers.Digital Badge called Pre-Lifeguard from CLOH.org. By Mark Rauterkus Swim, water polo and SKWIM coach in Pittsburgh, PA, USA. Also the webmaster for the International Swim Coaches Association. View all of Mark Rauterkus's posts.