Clean the bilge well (channel) to ensure smoothly.

清洁污水沟(井)，保证畅通。

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The drain pipes to be installed from the boiler flat and hot water well flat to bilge well for leading the waste oil water.

排放阀应装在从锅炉底和热水井底到污水井用于导废油废水。

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Reinforce to patrol vessel and measure the liquid tank and bilge water well frequently.

加强全船巡视检查，勤测各液体舱及污水沟等。

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