ASM/Euroreef skimmer setup

[vanreefer]

I think you may have trouble as the sump level somewhat dictates the level in the skimmer and with the super strong pump you may be forcing to much water = more microbubbles in the sump and less contact time in the skimmer.... check the ASM club thread on RC... You may be able to drill another hole in the skimmer body and feed it with some or all of your flow returning from the tank and do the recirc mod... this may slow the flow of water through the skimmer body
Hope you get it sorted out
I run the G4X ... awesome skimmers
HTH