Design the removal path first
Rehearse taking out foam, closing taps and removing an impeller before fixing decor. Moving rocks for every service guarantees delay.
Cabinets need moisture tolerance, heat escape and a visible floor for leak checks.
Avoid a decorative dead chamber
Dense planting catches leaves in front of intakes. Increase area and make local siphoning possible.
Measure flow again after screening: aesthetics changed the hydraulic circuit.