Who is more likely to dump black waste, tent campers or campervans with their own facilities? Are there black waste disposal facilities on site? If not, why not, if overnight stays are permitted, because it is no surprise that humans defecate each day, and not providing disposal facilities is a failure on the part of the Council, who also seen to be incapable of managing the alleged 'Aire'. But it's all the fault of the Motorhomers ... Or, perhaps Welsh M/homers only behave responsibly on traditional campsites whose Owners are complaining about M/homes/Campervans. Is it 'a gender' or 'agenda', and where does 'hidden' fit in?
Steve