Protein skimmer advice

[TmeLrd11]

Currently have a seaclone 100 and it has yet to produce any waste. I have had it running for over a month and nothing. I have tried adjusting the Venturi valve several times and still no dice. Is my aquarium not stocked enough or should I invest in a different skimmer?

 

[fort384]

Are you sure you have it submerged to the correct depth? If the skimmer is in water that is not deep enough, it will never produce any waste...

 

[TmeLrd11]

Thanks for the help! Upon measuring I realized it was only an inch beneath the water and the directions advise it to be at least 2 inches.