either I've done something completely wrong or something else was not as it should be. Anyway, all the helium-filled balloons were to use the locks the next day only to "half-mast" and following day then "oll and wrinkly" - since the filling has not kept. Next time I would just balloon zuknoten again - because at least I know that the air is out after 2 days. In my eyes, these closures are in the category - nice to know that there is something - but it's not actually nöig.
