The reason Im asking about running the swabbie, is if your not going to run a swabbie with your locker, your skimmer will not be as effective unless you plan on cleaning it on a regular basis (every 4-5 days). If your NOT running the swabbie with your skimmer, then the need for a locker, In my opinion, is a waste of money, because you still have to clean the skimmer every 4-5 days, which defeats the whole purpose of getting a locker.