Originally Posted by
GreenReefer
http:///forum/post/2750819
don't mean to steal the thread, but do one of have a good link for the mods to be done to a octopus NW002?
Google: Octo NW200 Step by Step to 40scfh
Basically you take the impeller out and pry off the first needle wheel and leave the second on. Use a knife and do it slowly. Once the top needle wheel is off, you can apply layers on enkamat. I used three. Cut a hole in the center of each so it can fit around the top of the impeller then cut off the edges. You do not want any rubbing at all. Use fishing line(at least 10lb test) to tie the enkamat to the remaining needle wheel. I used a needle to thread the fishing line and I was very redundant looping the fishing line around every needle wheel at least a couple of times. Then you must replace the stock venturi. I went to Lowes and bought a male to male 1/4' water fitting. Drill a hole in the pumps intake and then put this fitting in. Then use 1/4' tubing to attach to the venturi for air supply. This will let the pump suck a lot more air(which is the basic principle of all skimmers). I then took a dremel bored out the elbow that connects from the top of the pump to the skimmer. The original design was too restrictive. I also bored out the top of the volute. Keep in mine this was done on the older version. I'm not sure how the newer version is, but I believe they have put on a new elbow from the pump to the skimmer, so you may not have to do that mod.
The Octo extremes and MSX do not require modding. They are truly plug and play and sicce pumps rock.
