HOP - I'm going to take you up on your offer to "discuss this later if need be". If you don't mind...
I'm at the point that I'm looking to pick an internal pump. I'm thinking of running a little more than the 3-5 times system volume that you mentioned above as my system currently runs around 8x and it seems to be doing great. I'm about to install a Tunze 9010 in my sump and I'm looking into upgrading the return pump. The Tunze is going to turnover around 650-700gph, and I'm thinking I should match that with the return pump, right? So maybe an Eheim 1260?
What do you recommend? In so far as my HOB, I have one U-tube thats probably giving me around 600gph as well. I'm thinking that I should keep everything in my system flowing around 600gph so that they match, and then taking your advice and running a closed loop in the display via Koralias. Does this sound good to you?
I'm sorry to bother you again, but your posts have been the most informative and easy to understand. I appreciate all your help.
Cheers,
Luis