Tommy,
I am also very interested. I think this is the future. Already bought yesterday two 120 buyo air pumps....and want to make my new pond with airlifts.
I want to use the sewerage fitting which is one side 110 and the other side around 200 put them together and glue them. Before gluing them put on the inside a 110 pipe and perforate it. Then connect air pipe to it....
I already made some small airlifts for my fry....I was pumping air from outside into their baskets...
I want to see how U will do it.