Originally Posted by Waynage01
Sorry to jump in. I have been wondering about clean my skimmer. The neck ( or the part below the collection cup) is completely covered in coralline algae. Will this be affecting the efficiency of the skimmer?
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Yes, it effects efficiency.
Think about it for a second.....
if the neck where the bubbles gather is clean and smooth then there is a smooth, consistent flow of intact bubbles.
if it is dirty and textured, then bubbles have a harder time rising and are more likely to break rather than rise to the top as foam.