I had the 160 - it worked great, I now run the 180 gen2 - it works great but continues to break in and is getting even better.
My water level is at 8 inches exactly and it was with the 160. It is the most consistent skimmer and pulls as good as or better than my previous ER, H&S, Elos.
What happens when you cover the air intake with your finger - the bubbles rise rather quickly, yes, just checking.
You know how things need to slime up to work nicely? Well, I believe that leaving the cup, white area at the bottom of the cup (inside of course as it turns into the white material - that the whole white part should never be cleaned - when I cleaned it, the skimmer took longer to start skimming and I have never cleaned it since - the browner, slimerier the better in my experience.
When you close up the pipe (water flow) by twisting it, the water/bubble level rises - yes? and you have it set so that the division of more or less solid water, where it breaks into less water/more bubbles is around the level suggested on the pipe and/or manual - yes? (I run my a tad higher so that the bubbles at the point where they become bigger is about 1.5 inches up into the cup - you know about 3 inches from the top of the cup.
Have you changed any piping recently - overflow, new acrylic item in the sump, etc - doing this can suspend skimming for more than a day in my experience. - before you installed it, did you remove the volute and check for obstructions, etc?
When I clean my tanks (hands in) or some foods do slow down skimming but it comes back to normal in an hour - and it takes more than a simple quick hand dunk to make this happen - so what you are experiencing is not normal (in my experience)
Perhaps give a list of what you put in your tank like special liquid selcon, reefbooster, etc) - in my experience these slow down skimming for a while.
What size tank do you have this on?
I assume your system is mature not newly set up?
<a href=showthread.php?s=&postid=14149053#post14149053 target=_blank>Originally posted</a> by TheReefKeeper
No airflow meter. No different. Really hating this thing. Knowing the airflow is going to do what? It's going to skim or not. I can't imagin airflow is the problem it seems like design to me. It seems like their isn't enough power for the diamater neck or should I say their isn't enough reaction time in the lower body you are doing all of the reaction in the neck once that is dirty skimming stops. Every other skimmer I've ever owned you want the neck to stay clean. That is impossible with this. I am no skimmier expert by any means hopefully klaus will jump in and give an explination to what the design/function idea behind this is. I am also wondering if that's why a gen 2 came out.