I purchased the van in June 2015. It is the fact that I found hundreds of dead flys when I first stayed in it that leads me to believe that, whatever the problem is, it was present at that time. The owner would have cleaned the van before I viewed it and must have cleared flys away from all the obvious places.
The purchase price was paid to a Limited Company.
The lady owns the static caravan park. There are about 100 static caravans on the site. When someone leaves the site, she purchases their van, then advertises it for sale & sells it on. I would think this makes her a "dealer." So far as I am aware she has no other line of business & although she seems to spend a lot of time on site, she employes a site manager & others to work on the site.
As stated earlier, we discovered a lot of dead flies when we cleaned the van during our first stay. We just assumed that the van had not been properly cleaned after a lengthy period without occupation. When we first viewed the van we checked for signs of damp & damage however the dead flies were not apparent then as they were out of sight. It was on subsequent visits that we were confronted by live flies & realised that there may be a problem.
Straight away. We handed over our Banker's Draft & stayed in the van that night. We cleaned the van next day & noticed the dead flies. This was about a week after we first saw the van & agreed to purchase it.