Closed loop plumbing...

[WarDaddy]

I am going to use 2 pumps that I already have to plub my closed loop.

Should I plumb 2 seperate closed loops, or plumb both QuietOne 3000's into the same loop? Like this:

http://gifford-family.smugmug.com/photos/45231614-L.jpg

[merlock116]

no problem using one or two seperate loops.

i would size up the intakes to at least 1.5"