You might have seen this on Tv and car shows, any good or waste of £££?

http://www.selkin.co.uk/site/site/home/hom...mp;t=p&i=77

I had a very similar product several years ago which I purchased to enable cleaning of my car and caravan whilst away. It worked to a certain degree but I found it was not a very good system when in use. It certainly didn't perform in the same way as the demonstration had suggested, but maybe it was just me.

I brought just the one way valve and used my own hose and brush, worked ok but not the best bit of kit