5.1 Bilge alarms may be used as water level detectors provided that they meet the
functional requirements and installation and testing requirements set out in sections 3
and 4.
5.2 Some cargoes require the bilge pumping system to be protected to prevent the spread
of contaminated or potentially dangerous fluids.
5.3 Where the cargo hold bilge well will be completely sealed when specific cargoes are
carried, and the bilge well therefore cannot be used for the entry of ingress water to
the detector(s), a suitable alternative detection point or points are to be
provided.
5.4 If the bilge well is used for when specific cargoes are carried, the bilge well is
not to be completely sealed in order to allow water ingress for activating the
detectors.