I read this as the Saniflo not be used to pump toilet waste but to pump
waste from kitchen appliances. I hope the references to sanitary towels
therefore won't apply ;-)

Must engage brain and read the original post before replying!

However, I think you may suffer problems from the small bore pipe clogging
with the build up of grease/fat from discharge from a sink, or soap powder
residues if carrying washing machine waste.

I'd have thought the soap in the lines were more likely to keep the thing
clear, rather than blocking it, particularly if the water is reasonably
soft.

Christian.