SUMMARY
This troubleshooting record follows the sump build this tank runs on.
Intermittent sump overflow occurring after turning the system back on following feeding. Issue appears inconsistent and may be related to flow restriction or temporary imbalance.
DETAILS
The sump is not intentionally overfilled, but on multiple occasions water has risen and overflowed from the top after restarting the system.
Typical routine:
- Sump is turned off during feeding
- Left off for ~45–60 minutes
- Turned back on afterward
Observed behavior:
- Some restarts: normal operation
- Other restarts: sump begins to overflow shortly after turning back on
Recent incident:
- Sump turned off
- Turned back on shortly after (~5 minutes)
- Overflow occurred almost immediately
Possible contributing factors:
- Intake/overflow tube from display to sump has not been cleaned recently
- Potential intermittent clog or restriction
- Possible temporary surge in return flow vs drain rate
NEXT STEPS
- Inspect and clean intake/overflow tube
- Check for partial clogs or biofilm buildup
- Observe restart behavior closely after cleaning
- Evaluate sump operating water level vs max capacity