Cassette flush, manual vs electric?

[just wandering]

Hi. This may be a silly question, but I can't figure it out. Is the electric version for flushing after use or is it for cleaning/disposal of waste?

Thanks,
Jack

 

[Bluemooner]

Flushing after use

 

[just wandering]

Flushing after use

Thanks!

 

[maison]

Or, if you flush during use, it doubles as a Bidet!