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Question: 1 / 400

If your marine toilet has a "Y" valve, what must you do in a No Discharge Zone?

Open the Y valve

Remove the Y valve

Be certain that the Y valve is secured in the closed position

In a No Discharge Zone, it is crucial to ensure that the "Y" valve is secured in the closed position. This is necessary because these zones are established to protect the water quality and aquatic life from pollution, specifically from the discharge of untreated sewage from vessels.

The "Y" valve typically allows for the option of directing sewage either to the holding tank or overboard. In a No Discharge Zone, to comply with regulations, any discharge must be contained within the holding tank. This means that the valve must be closed to prevent any accidental discharge into the restricted waters.

The requirement to have the "Y" valve securely closed while in such zones helps ensure that boaters do not inadvertently release waste, safeguarding the environment and maintaining the integrity of ecosystems in those areas.

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Use the marine toilet only when docked

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