There are a number of options including liquids, sachets and deordorising discs.
It depends on the tank size and where it is being used
We would not recommend it. However, yes you can transport the toilet lying down.
We use Australian made cabinets and internals manufactured in our factory with stringent quality control and import top grade European marine grade components – so they last up to 20 years.
It usually requires a service contractor using a vacuum tank to suck out the toilet.