I just stopped by the the Ceta event and witnessed a demo by Advance. They ran a modified surface cleaner with the vacuum mounted to the surface cleaner that pushes the recovered water to the recover tank rather than suck it to the tank. I didn't discuss the price, I only complained about the weight of the unit (250lb. 30" surface cleaner). It looked like a great self contained water recycle unit that would be great for large flat work accounts. I can't help but think this would solve all of the clogging issues.
I'm not ready to replace what I have, but I think they are really on to something.
There should be a rep around the NCE event, but they are packing up the equipment after it's last demo at about 3 today.