I see. I use it for the same reasons. But also as a live filter. Mine looks like this.
Drain and sock,skimmer-heater,phosphate sponge covered slotted baffle-fuge- bubble catch,carbon sock- return.
I grow sawblade, chaeto, and grape caulerpa. Havest weekly. Fantastic pod population.especially in the phosphate pad. They love breeding in it. the overall flow of the sump is fairly fast. So the fuge has a decent current. Care for the system is pretty simple. Monthly vacuum and glass scrape where possable.