Carpet Cleaner with (2) adaptors
note. Check that the cleaning fluid is in the top tray nd that the clear thin tub sits in this fluid and isn’t trapped when reassembling the lid of the machine.
also note that either of the cleaning adaptors (large or small) have a sliding mechanism that lets water flow or not. See manual if unsure,
Demo video from manufacturer
https://youtu.be/-PiEhq61AC8?feature=shared
manual
https://www.manualslib.com/manual/539045/Vax-6131-Multivax.html#manual