John,
Thanks for the prompt reply. I will look up Greg's essay. So you suggest I put the 2" pipe in the sump instead of the back of my tank? That is a good possibility.
Currently the 1" bulkhead is one of three 1" bulkheads that I am using for my return back to the sump. They are gravity feed back to the sump. I am not sure how much water they are bring back into the sump now. How do I check to be sure the sump, which is just a 29 gallon tank filled halfway up, can handle the suction from the Sequence pump without pulling all the water out of my sump!?! Currently, I have a LIFEREEF skimmer, three submersible pumps (for return water to the tank,the uv sterilizer and skimmer), my heater and my carbon filtration in the sump.