I agree I am also confused? did they change the design or something? I found that only 10-12ft of the discharge hose would be more than plenty to work effectively I used about 15-17 ft and found the temps drop faster (like twice as fast) than my cool zone carboy jacket.
I actually got a Blichmann 14.5 gal conical which you can see below with the high legs. I was hoping to use the same cooling technique with the flat hose and pump, but then realized that the legs go all the way up to the lid. Any idea if I can still get enough cooling for ales with the reduced contact area if I wrap everything to insulate it?