Ohh sorry for confusing you, the article isnt posted yet.. infact tomarrow I am going to be working on the project, and starting to assemble the stuff into the new system.
In most cases you should keep the pump as the LOWEST point. Unless you have a compression pump or some type of pump that is NOT centrifugal type (99% of all aquarium pumps are) you need to keep it low cause those kind of pumps cant "pull" water, they can only push it.
A simple explanation of my design is to make a section of tube be the highest point in the system, or just make a line that would act as a air trap. I did just that. On Sat or Sunday you will see.
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C-ya
Joe
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