It didn't work as I was hoping. I was an inch short of the minimum water level. To try to adjust for that, I tried limiting the air intake, which in turn did assist some with skimming as more air made more bubbles and the more was able to get some into the collection cup.
One of the other issues with the model I have, as it sits outside on my porch, was that the pump powering it wasn't the best. I spent many nights reading stories about it and the fix that they had was to use some replacement pump that fit...but it was over 100 bucks. For another 100 bucks, I still wasn't meeting the minimum water level so I simply used the funds to get a different skimmer...to which also had mixed results until the pump died and needed replaced.
For the record, I dislike skimmers. Love/hate relationship for sure.