Skimmer driving me nuts >.<

[Myka]

Originally Posted by mrhasan

When the pump is on and the skimmer is off, the sump level is around 1/2 to 1" higher for the skimmer. I wonder whether that's the culprit.

That's likely. When you refill, don't add so much. That way the level will be a little low, then turn on the skimmer, and top up as needed.