Here's a seaclone question ; in the viewable area between the bottom of the collection cup and the top of the body, where the water exits the skimmer, I have noticed that the water level rises and lowers the foam. It goes up and stays there for about 5 seconds then goes below this "viewable area" for about 10 seconds, and then back up again. Is this normal? Shouldn't thie water levle stay constant in the skimmer?
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