That is so close to the DAS skimmer i have. The design works great - just cleaned out the skimmate tonight and it was thick on the sides and i cleaned it out 3 days ago. To me it works awesome - easy air adjustment - i shut off the water intake only and leave the other pump running when i clean it out so it never misses a beat. I bought it from a guy downtown for $100 (awesome deal) - didn't know anything about them - I was nervous about the 2 pumps crapping out but looking at it the pumps could be matched with off make ones, nice big collection cup and large chamber. Once turned on - maybe 3 slight turns of the air inlet over 2 hours and i haven't touched the setting since. I think once you hook it up you will be very pleased with it's performance. I have to find my cable for my camera but i will take some pics tomorrow - actually have to take some pics of the whole tank now that it's back up since the fire.
Rich