Leave it to me to make things more complicated than they need to be. This is my new idea:
Yeah, probably to complicated for such a small filter. One problem I'm having with the 90degree barbed fittings is that it kills what little flow I had comeing out of the filter. So what I'm thinking I can do to correct this is to use 90 degree PVC elbows to make the turns, and use straight barb fittings to conect the harb plumbing to the tube's. The idea behind this is that since the inside of the PVC is going to be so much larger that it will not cut the flow rate as bad. I'll see how well this idea holds up.
I've not ordered the inline pump yet, but should do so soon. I'm sure that it will do a better job than the submersible that I'm currently useing. Then agian, I don't want a large amount of flow either.