"KurtG" wrote in message
. ..
ONJ wrote:
My fear is if I do it will fill up during the day when I'm at work and
overflow.

You need to skim very wet to have this happen. It only happened to me
once (because I started kalkwasser), but my skimmer is in the sump, so
not really an issue.

If it hasn't generated skimmage yet, chances are it's not going to
overflow anytime soon. If it's a worry, just unplug it until you can
monitor it again.

Adjustment depends on your type of skimmer:

Well I guess my question is, do I run it so that the bubbling water is at
the bottom of the collection cup tube and it will foam up to the top later?
Or do I run the water level towards the top of the tube?