Here is my CS 65. It initially leaked under the knob like everybody else's so i just lowered the microbubble level.
It is not as good as the ozone ones but I think it is okay.
Sorry, pix are not that great.
Microbubble level is about quarter of an inch above the tube. It was pulling darker skimmate, but when i fed last night...it produced more wet skimmate.
Js