21-02-2022, 04:43 PM
An extract from 'Nelson to Vanguard: Warship Design and Development, 1923–1945 By David K. Brown' explains submarine heads around the end of WWII.
'A feature which was warmly welcomed was the installation of a sewage tank.
Previously the heads had to be flushed each time they were used, the contents of the pan drained into a pressure pot which was then blown into the sea by compressed air.
This had two hazards; the bubble might give away the position of the submarine (permission always had to be sought to use the heads), the other was that maloperation
of the complicated system of valves and levers might lead to the user suffering the fate known as 'getting your own back'. '
Jim
'A feature which was warmly welcomed was the installation of a sewage tank.
Previously the heads had to be flushed each time they were used, the contents of the pan drained into a pressure pot which was then blown into the sea by compressed air.
This had two hazards; the bubble might give away the position of the submarine (permission always had to be sought to use the heads), the other was that maloperation
of the complicated system of valves and levers might lead to the user suffering the fate known as 'getting your own back'. '
Jim
