New plumbing, where to dump

So, I have a sump and a refugium (triggersysatems), both have water inputs.

I have a Remote Deep Sand Bed, External Skimmer, and tank overflow with outputs.

I will have the tank drain into the sump. Should I have the RDSB or the skimmer or both drain into the refugium? Or does it even matter?


Tank --->
Skimmer --->
RDSB --->

Refugium <---
Sump <---
 
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