From the forum photo.ru:
We were in the building when we were given valves from the dryer so as not to create a push near the one in the hands were given 2 pieces and not necessarily coupled.Then built in one shelter and those in whom both left made two steps forward in whom the right one.Then the out of order exchanged one valve (and what is interesting to any) Well, the back at this time mainly rested or helped to change clothes to those in whom the valves looked in different directions.