The 3005 uses 3 of the needle wheel impeller modified L45 pumps to produce foam. They are each rated, when not making foam at 925gph. Just two of these in my 2005 creates foam like I have never seen. 3 ought to be quite a show. I think the flow thru the unit can be pretty high as it uses a standpipe overflow. I have 500gph feeding my 2005 and it could take a bit more. But I could not find any air flow numbers.
Mine has been stable as a rock. I clean the collection cup every few days. I have plumbed the cup to a water jug so I don't have to dump the cup all the time. But since it works so much better when squeaky clean, I end up washing it all down often. This is extremely simple to do as the whole top lifts off using a big O ring. Nothing to unfasten.
I have had to adjust it once when I installed it and that was it. I have a very stable supply flow of water and the air adjuster sets the foam level and it stays there. Stable.
One other thing. It produced dark green skimmate within the first hour of operation. Never had a skimmer start working that fast. Best Craigslist $250 I have spent.