What to do if the fishbox pump out pump on my Blackfin 272CC Boat runs, but does not pump out the fishbox?
- WwoodericSep 7, 2025
The drain fitting in the fishbox may be clogged, so clean the fitting. If that doesn't work, the pump may have an air lock; fill the fishbox half full of water, then turn the pump on and off several times to move the air out and prime the pump. Another possibility is that the pump discharge line is clogged, so clean the discharge line.

