Regulation 25
Water Level Detectors on Single Hold Cargo Ships other than Bulk Carriers
of Merchant Shipping (Safety Convention) Regulations
( a ) Single hold cargo ships other than bulk carriers constructed before 1st January 2007 shall comply with the requirements of this Regulation not later than 31st December 2009. ( b ) Ships having a length (L) of less than 80 m, or of 100 m or less if constructed before 1st July 1998, and a single cargo hold below the freeboard deck or cargo holds below the freeboard deck which are not separated by at least one bulkhead made watertight up to that deck, shall be fitted in such space or spaces with water level detectors * . * Refer to the Performance standards for water level detectors on bulk carriers and single hold cargo ships other than bulk carriers, adopted by the Maritime Safety Committee by resolution MSC.188(79). ( c ) The water level detectors required by paragraph ( b ) shall —
give an audible and visual alarm at the navigation bridge when the water level above the inner bottom in the cargo hold reaches a height of not less than 0.3 m, and another when such level reaches not more than 15% of the mean depth of the cargo hold; and (ii) be fitted at the aft end of the hold, or above its lowest part where the inner bottom is not parallel to the designed waterline. Where webs or partial watertight bulkheads are fitted above the inner bottom, the Director may require the fitting of additional detectors. ( d ) The water level detectors required by paragraph ( b ) need not be fitted in ships complying with Regulation 12 of Chapter XII, or in ships having watertight side compartments each side of the cargo hold length extending vertically at least from inner bottom to freeboard deck. [S 686/2008 wef 01/01/2009]