this is something i feel that must be entered into in a proper maner. For example, I was going out the end of our street on Thursday (bin day) and notced a white van with two guys on the floor just behind it, the driver sat in driving seat. One of the guys at the back had a powere washer lance in his hand the hose came from within the van, so obviously there is a tank of water and a generator in the van. The other guy was holdng a wheelie bin on it's side whilst the first guy washed it out, and you guessed tipped the dirty water into the gutter/street drain. Now I'm no business guru, but I do know it's highly illegal to tip poluted water down a surface water drain. I think they should have a recycled water and containment tank so they can discharge the dirty water down a sewer/fowl drain, and that needs a licence to discharge of the environment agency, and a waste carriers licence for their van