I have a 100L Marchisio variable capacity wine fermentor with a floating lid that uses a inflatable tube to seal the lid. The inflatable tube absolutely stinks! It is constantly in need of additional air (daily) from the attached hand pump. Obviously this is a nuisance and a waste of my time. With that being said, Does anyone use these for winemaking and secondly have you had a similar experience? If so, what is your solution? I searched for a heavy duty replacement tube but came up empty. I even thought of an bicycle inner tube but that obviously can't come into contact with the wine.
Thanks in advance!