Hey Leigh.... No problem, I control flow for 2 reasons. 1. my pump is bigger than I needed and I slow my flow that way. I also use the gate valves on in/out of the pump to isolate it with minimum water spill if I need to remove it for cleaning or maintenance.
I removed my right pump to use it's tank port as a straight thru path into my DT. On the right side there is no room to go over the top of the back rim into the DT. I didn't want to dump my chiller water back into the same chamber I was pulling tank water out of to send to the chiller, if that makes sense. Also I didn't need the pump as I was running Korila 1 & 3s and will put in my MP40 next month. I'm thinking seriously about removing the Left pump once I get my MP40 but still thinking about that.
There are no dumb questions! I asked all the same and more of others as I was building mine. That is the great thing about this site! What worked best for me was I drew out the whole thing on paper first the way I wanted it, then went and bought the plumbing and had a fun weekend. Good luck