I personally fall assembly of a swimmer with a tube better than with this rigid S-piece. The seal and the copper ring fell into the tube and is not jammed in the crease. Thus with me was the S-piece for a ton and I have used the good old tube. Further deduction is available for the manual. Which ring comes before or after which the seal? The drawing is for me not clearly identifiable even with a magnifying glass. The float itself is well made and works well as usual.
