How to drain the toilet flush

Hi everyone - newish to the motorhome lark and mine is a 2002 peugot palermo auto sleeper. Any idea how I drain the toilet flush. Can't find any info in the user manual that came with the van. Thanks in advance

Not familiar with your van but is there a glass tube visible just inside your cassette door. If so, unclip this and lower it to point to the floor outside the cassette door, it drains through that. If you don't have the glass tube, then chances are for have a swivel toilet with a blue button to flush it, then there is no way to drain it, just keep flushing until empty.

Hi Pat
Welcome to the forum from Bridlington 
Boaby