FIELD: discharge of water from submarine hull. SUBSTANCE: discharge of water is effected by means of pump. Discharge is effected at two stages: at first stage water is taken into tank where rarefaction is created by vacuum pump and at second stage water is discharged from this tank overboard by means of high-lift water pump. Device for overboard discharge of water includes high-lift pump, fittings, pipe lines and drainage valves fitted at areas where water is likely to accumulate. Suction pipe line of high-lift water pump is provided with tank to which vacuum pump creating rarefaction in tank and drainage valves are connected. EFFECT: enhanced efficiency. 3 cl, 1 dwg
