I know its not the back pressure causing the leaking. I took off the 90 degree elbow with the flex tubing, the water was still leaking out of the adjusting knob.
If I lower the bubble box, too many bubbles enter the tank. So I like the height of it as it is.
I have emailed Coralife to see what they say, I may end up returning this skimmer for a new one.
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If it is just us,
It seems like an awful waste of space.
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