Jeanneau NC 9 Owner's Manual - page 68
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SEWAGE TANK
Deck drainage
Sewage tank
Location: Technical room
Capacity: 80 l
Gauge
Location: Head version
WARNING
- The tanks' nominal capacity cannot be fully used due to the load and the
need to maintain the correct trim. A 20% reserve should be kept (the valve
must be opened before starting the pump).