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 Final product, 15 hours start to finish. #buildstr
https://image.nostr.build/b041edc9f4a828ef85dcc85eb6d094ed1d330df70b4dadf41d12c11ef0734a5a.jpg 
 Nice pipe work! 
 What does the tank on the right do? 
 Pressure tank? 
 Yeah
 
 Its an expansion tank. Has a rubber diaphragm in it that expands as the water within the piping changes temperatures. (Expanding and contracting). This way hot water doesn't expand to the point that it blows out the pipe joints.