G4 + ASM skimmer?

I have the G4+ with the 9000 - it works great I have read threads that the original g4 pump was not powerful enough. Also did the gate mod and the recirc mod. Highly recommended.
 
gate vavle mod lets you adjust the height of the h20 a lot better & more precisely. Instead of the tube you slide up/down with the foam stuff on the eng the gate valve determines the heigth of the h20 inside the skimmer.
 
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