Here's my experience, take it for what you will. I've been battling
with this particular skimmer for over a year now, I'm near replacing it.
But over the last week it's produced zero bubbles, so here's what I
did to solve it. First I don't think that your silencer is the issue, I
think I noticed mine is uni-directional, so that it may seem blocked,
but try sucking instead of blowing. But I digress, I find that moving
the pump closer to the surface of the water allows it to take on bubbles
either with or without the silencer, but it is good and loud without.
I don't know that I want to officially recommend snipping the tubing
on your pump(the one that feeds to the skimmer) but it worked for me. I
assume it's easily replacable at any local home improvement store if it
gets messed up.

Other issues I find with the CSS, bubble diffuser is absolutely
worthless. Occasionally it would get tempermental and fill itself up
with no real warning, and leak all over my floor as it has no reason not
to pour out the top. I've been trying to fix the problems as they come,
but it's annoying, keeping the water level where it's supposed to be is
not super fun. And the instructions and website mention none of this.

wrote:
I have a Coralife Skimmer,it's the 220 gallon model.There are no
micro bubbles being produced,and there is no skimmate.I checked the
"silencer" that has a tube running down to the venturi at the
pump.There is no air flow through this silencer,through either
nipple on it.It's a round piece of plastic,with two "nipples" on the
top of it.When I disconnect the tubing,and let it suck air it
appears to run normally,but the skimmate is WAY to wet,and the level
rises too high.Any help would be appreciated,the website is useless.








Abandon your animosities, and make your sons Americans.
-Robert E. Lee


We must expect reverses, even defeats. They are sent to teach us
wisdom and prudence, to call forth greater energies, and to prevent
our falling into greater disasters.
-Robert E. Lee

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