Is it difficult to replace swivel o-rings for an SPG or air-integrated computer? Alec shows how to replace an "air spool" and its o-rings along with some SPG 'stone age' history.

Watch my "Alec Peirce at the Ranch" for ranch and home ideas.    / @alecpeirceattheranch  

**** Alec Peirce Scuba ****

SCUBA TECH TIPS playlists
▶︎ Series 15:    • Scuba Tech Tips - Series 15  
▶︎ Series 14:    • Scuba Tech Tips - Series 14  
▶︎ Series 13:    • Scuba Tech Tips - Series 13  
▶︎ Series 12:    • Scuba Tech Tips - Series 12  
▶︎ Series 11:    • Scuba Tech Tips - Series 11  
▶︎ Series 10:    • Scuba Tech Tips - Series 10  
▶︎ Series 9:    • Scuba Tech Tips - Series 9  
▶︎ Series 8:    • Scuba Tech Tips - Series 8  
▶︎ Series 7:    • Scuba Tech Tips - Series 7  
▶︎ Series 6:    • Scuba Tech Tips - Series 6  
▶︎ Series 5:    • Scuba Tech Tips - Series 5  
▶︎ Series 4:    • Scuba Tech Tips - Series 4  
▶︎ Series 1, 2 & 3:    • Scuba Tech Tips - Series 1, 2 & 3  
▶︎ LDS Pro series:    • LDS Pro  

VINTAGE SCUBA playlists
▶︎ Series 10:    • Vintage Scuba - Series 10  
▶︎ Series 9:    • Vintage Scuba - Series 9  
▶︎ Series 8:    • Vintage Scuba - Series 8  
▶︎ Series 7:    • Vintage Scuba - Series 7  
▶︎ Series 6:    • Vintage Scuba - Series 6  
▶︎ Series 5:    • Vintage Scuba - Series 5  
▶︎ Series 4:    • Vintage Scuba - Series 4  
▶︎ Series 3:    • Vintage Scuba - Series 3  
▶︎ Series 2:    • Vintage Scuba - Series 2  
▶︎ Series 1:    • Vintage Scuba - Series 1  

SEA HUNT REMEMBERED playlists
▶︎ Series 3:    • Sea Hunt Remembered - Series 3  
▶︎ Series 2:    • Sea Hunt Remembered - Series 2  
▶︎ Series 1:    • Sea Hunt Remembered - Series 1  

SEA HUNT COLLECTOR
▶︎ Website: seahuntcollector.com/