Why do skimmers break in?

[Racso]

Rather why do skimmers NEED to break in? What changes in the days/weeks after they are set up than causes them to skimmer different?

[Henry Bowman]

Due to the chemicals and dust that may be present on the plastic after the manufacturing process, the bubbles do not form as well as possible until the inside of the plastic is totally clean of foreign matter. This foreign matter also includes oil from our hands. I have read (never done myself) that reefkeepers wash out their skimmers with vinegar water and then rinse thorougly thereby cutting the "break in" time down considerably.

Just thinking.....dangerous. You know how new plactic products are very staticky (sp). The electric charge may also have something to do with it ?