Sewage Tank

Discussion in 'Boat Design' started by mtht110, Sep 27, 2017.

  1. mtht110
    Joined: Jun 2011
    Posts: 25
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    Location: Bangladesh

    mtht110 Junior Member

    What is the sewage holding tank requirement for Tugboat as per MARPOL?
    What is required volume for 16 person crew tugboat?
  2. NavArc...
    Joined: Nov 2016
    Posts: 20
    Likes: 1, Points: 3, Legacy Rep: 10
    Location: United Kingdom

    NavArc... Junior Member

    As per MARPOL as far as I know -
    'a holding tank of the capacity to the satisfaction of the Administration for the retention of all sewage, having regard to the operation of the ship, the number of persons on board and other relevant factors. The holding tank shall be constructed to the satisfaction of the Administration and shall have a means to indicate visually the amount of its contents.'

    Lloyd's provide the following guide:

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