RARE! VR Class Sm4 commuter train vaccum toilet

This toilet can be flushed, but you can't flush it many times (pressing the button many times like with Stadler trains, once it has fully charged), so you'll have to wait for some seconds before you can flush.
This train uses M fixtures for door opening on the gangway, like Kone uses for spare parts and also used on their elevators from 1982-83 (experimental) before they became standard until 84-85 and up to 2001. Even if Kone stopped making them in 2000s, they still have spare parts. 🤔😕
Filmed at 18th of July 2024.