- Joined
- Dec 26, 2017
- Messages
- 87
- Reaction score
- 29
Currently running a core 20 as my return pump looking to ad a standalone manifold for gfo carbon possible refugium down the line. Was looking at a core 15 I know it’s overkill. Was thinking it would be a great back up return if the 20 ever goes down also could switch it over when cleaning the core 20. Just not sure if I would be able to dial the 15 down low enough for just carbon and gfo. Any thoughts