If you take your cover off, there's a lot of wasted space, i think the new systems are more compact and with new bits on. I had a demo van come out to me as i was having a gutter vac demo and Ruben had a pro6 thermopure in the back of a brand new van. It had a couple of things on it i didn't recognised. They were valves and switches i asked his reply wait till the show didn't let on a thing. Then me and the BFG ran into Craig at the factory, he told me they are working on a totally new system and I'm not going to tell about it, but what i will say its going to be totally Automatic. All you do is plug in your water supply. So it must do the back wash and the flush and also set the pressure valve for you.