SOG Toilet Kits
There is another thread running on here about whether to use the toilet in the van or go to the toilet block. We never use the site facilities.
On our last three vans we have fitted a SOG Toilet Kit which is basically an extractor fan which fits in the pipe on the toilet and when in use draws in air from the bathroom which it vents outside through the cassette door taking any odours with it. They
suggest that you do not need to use chemicals with a SOG but we do use a small amount as well. They are not cheap but our last two vans have only lasted a couple of weeks before we have given in and bought a new one.
I have never met anyone else who has one fitted but they must sell them to people as they have been in business for the last ten years to my knowledge.