Tweaky Toilet Costs Skipper His Sub

 "1945: A malfunctioning high-tech toilet forces a German U-boat to the surface off the coast of Scotland, where it is promptly attacked by a British aircraft. The boat is scuttled as the crew abandons ship.

U-1206, sailing out of Kristiansand, Norway, as part of the 11th Flotilla, was cruising at a depth of roughly 200 feet when the commander, Kapitänleutnant Karl-Adolf Schlitt, decided to answer the call of nature. The submarine was a late-war Type VIIC, commissioned in March 1944. It carried a new type of toilet designed for use at greater depths.

Like a lot of new technology, the toilet was just a little buggy. Schlitt had trouble operating it. When he called an engineer for help, the man opened the wrong valve, allowing seawater to enter the boat.

When the water reached the batteries located beneath the toilet, the boat began filling with chlorine gas, forcing Schlitt to order U-1206 surfaced. Unfortunately for the Germans, the boat was only 10 miles off the Scottish coast, and it was quickly spotted by the British."
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