Cause of wet skimming question?

[The Guy]

Originally Posted by Doug

I find that when Im in the tank it cuts the foam head way down not increase. This was the same for my MCE 600. Overflow for me is caused by dosing something like my Red Sea growth/food products. Also clean socks causes it to. Or any rise in water levels.

Makes sense, arm in the tank water level goes up, especially in a red sea tank.
I better shut the skimmer & ATO off while I'm in there from now on, having a tank with the sump attached on back is new to me as I've used a separate sump below in the past so it was never an issue.
Thanks for the comment Doug.