CHEZURAquarium decisions A pump spends pressure lifting water and overcoming friction. Hose length, diameter, bends, valves and fouling add together.
Vertical difference creates static head; pipe and fittings create friction head. One narrow connector can govern the circuit.
Biofilm and debris shrink effective diameter. Throttling works but intentionally turns pump energy into loss.
Fix kinks, trapped air, fouling and redundant fittings, measuring after each change.
Do not modify filter ports beyond manufacturer pressure and sealing limits.
| Situation | What to do | Why |
|---|---|---|
| Low from installation | Check lift and diameter | Circuit consumes head |
| Gradual decline | Clean hose and prefilter | Effective bore narrowed |
| Many sharp elbows | Use smoother routing | Every fitting adds loss |
After check lift and diameter, measure or observe Low from installation again with the same method. Record A pump curve is more useful than zero-head flow. as well; if neither changes as expected, revisit the diagnosis before adding another intervention.
Sources include institutions, technical studies and manufacturers. Chezur separates established mechanisms from editorial decisions for home aquariums.