I picked up a used asm g2 with the Sedra 3500 pump yesterday from another member here yesterday. I figured being used break in would be quick. Well I played with it every few hours trying to get it adjusted but couldn't get a decent foam going and it's my 3rd skimmer so I pretty much know what to do. The stand pipe was really high...like an inch above the bottom of the collection cup and still not working properly. This evening I got aggressive with it and just raised the stand pipe till it gushed and filled the cup. Then lowered it to produce a wet foam. Now the stand pipe is about 1 1/2 or 2 inches lower than before and making a nice head of foam. I'm just trying to piece together what I've learned here. Any asm fans with similar experiences?