Installed a new column, emptying the toilet and dirty water is no problem. We have screwed on our own hose for filling with clean water.

Sani column not in use, you can no longer empty the pot.

Need to bring own hose for rinsing casette, and for freshwater. Fw is in cupboard on the righthand side. (ie only one fw outlet). No grate/similar for greywater. Station somewhat ignored by owner (like so many stations) but it works.