Skimmer in same chamber as Filter Roller?

[smartwater101]

I'm getting a filter roller and skimmer and was planning on putting them into the same chamber.... While designing my sump, I realized the water level shifts (with a filer roller) could be problematic. But I've never used a filter roller so I'm, not sure how drastic it is? I was hoping to save space this way, but should I design the sump with a separate filter and skimmer chambers?

 

[smartwater101]

Bump

 

[smartwater101]

bump