Sorry no. I think this is still breaking in. This is day 4 and the gunk is medium colored tea. Rotten egg smell. I’m sure it will get better. My broken in Vertex pulled darker skimmate.Any chance of running them at the same time to see which one ends up pulling the gunk?
Large bubbles can sometimes signify oil. You might consider a strong vinegar scrub of that skimmer.So 9 went ballistic. At 12-13 setting for about a week. The old Vertex seemed to have finer bubbles to the neck. For some reason, the bubbles enlarge in the neck on this skimmer. Skimmate still medium tea.
I usually drain mine into a bucket or open it up a bit when this happens, although it makes me wonder if you are set too wet. If you do drain to a bucket watch your salinity and have a shut off switch in the bucket.The skimmer has gone mad. Bubbles erupting! Can even put the cup on. Did water change.