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Periodical Testing of Watertight Doors |
Operational tests of watertight doors, shall take place weekly. For Yachts in which the voyage exceeds one week in duration, a complete set of operational tests shall be held before the voyage commences, and others thereafter at least once a week during the voyage. REG code 2021 |
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I like this YouTube video. It would be good material for anyone studying GSK, Seamanship or Orals