When they have reached "capacity" so sometimes 12 sometimes earlier
Not sure, but I do know you should get there early and expect to wait a few hours for your items to be looked through. I always call before going, but they dont like to give a time estimate over the phone. Even when going early, the wait can be quite long if they have had a lot of people dropping stuff off or are backed up from the day before. My experience has always been a long wait!
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