so i got a skimmer handed to me yesterday by a guy i know, it goes in the sump, now i have no idea what this skimmmers capabilities are , it stands about 18" tall and has a spout 3/4 the way up to let the water out, and the top portion of it i can take off to dump out scum. its a complete cylinder, and another thing, how should i clean it before it goes into my tank?