After a one off clean from a cleaning company, I found that the new vacuum cleaner stank of cat wee. Discovered that the bag inside was soaking wet with cat wee, as if either the cleaners sucked up a whole lot of wet cat litter when cleaning (impossible as the cat litter tray plus cats were in a room they didn't enter) - or (more likely - but weirdly unusual), the cats selectively weed on top of vacuum cleaner and wee went into vacuum cleaner.
Anyway, however it happened, I managed to change the vacuum bag and clean out the compartment where you replace the bag. BUT....the long pipe for the whole vacuum cleaner absolutely STINKS of cat wee still.
Is there anyway to clean this out? We are talking extremely strong smelling cat wee - the kind that uneutered males use to mark their territory. I have no idea why either one of my NEUTERED male cats, who have never used anywhere other than their litter tray before, might have suddenly decided to use the uncomfortable vacuum cleaner as a toilet!
A horrible thought also springs to mind - that whilst we were out and the cleaners cleaning, the male cleaner may have 'toileted' inside the vacuum cleaner pipe? 
But surely not???
Anyway, how can you disinfect a vacuum cleaner pipe - which is the long silvery grey tube plus the inaccessible black connecting bits (ie can't take them apart) connected to the pipe/hose - and stop it stinking, without compromising the vacuum cleaner's ability to function (ie has to be completely dried out prior to next use)???