12.1 Toilet and septic tank
The boat's toilet is flushed with sea water and the flushing waste is conveyed into the septic tank. The tank has a capacity of 30 litres.
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Drain the septic tank when leaving port by using the port’s drainage equipment.
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The septic tank can also be drained into the sea using the sea drainage valve. Keep the valve closed under normal conditions. The valve can be sealed.
Discharging the septic tank into the sea is an environmental hazard and against responsible seamanship in many countries.
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Plan your trip so that you have access to the septic services at ports.
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Find out local regulations about the handling of marine waste water before emptying the tank into the sea.
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Clean the septic tank, the hoses and other components with a mild alkaline detergent.
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Keep the system as empty as possible when storing the boat in freezing conditions. Use glycol as an anti-freeze agent if necessary.