Why did the U 120 submarine sink?

This is a misinformation in the magazine, because the toilet problem sank the submarine U- 1206, not the submarine U-U 120 that sank by itself after Germany's defeat.

U 120 belongs to the old IIB submarine. Two submarines of the same batch started construction in Frand-Walker Shipyard in 1938, numbered U- 120 and U- 12 1. It was intended to be exported to China, but it was not delivered to Germany for its own use because of the establishment of the German-Japanese axis.

The u 120 did not participate in actual combat in World War II and has been used as a training boat. 1on may 2, 945, due to the approach of the allied forces, they all chose to sink themselves in order to avoid being captured.

U- 1206 is a type VIIC submarine, which started service on March 1944. This new submarine is equipped with a newly designed deep-water high-pressure toilet, which can be used in the deep sea, but it needs special training.

1On April 5th, 945, when the ship was snorkeling at a depth of 200 feet only 8 miles from the Scottish coast, the captain Schritter tried to use the new toilet without the guidance of technicians. Although a technician came to help him solve the problem later, he didn't notice that the captain had changed the settings and opened a seawater valve by mistake. As a result, seawater flooded into the ship and flooded the battery compartment. Causing chlorine gas to leak. The captain was forced to order an emergency flotation under the eyes of the enemy. When the Germans had just cleared the chlorine gas, the bomb of the British bomber came down, killing four crew members on the spot, and the submarine could not dive. The Germans were forced to abandon the ship and be swallowed up by the continuous influx of seawater from submarine valves.

In the 1970s, BP discovered the submarine U- 1206 while laying a submarine oil pipeline. It is still at the bottom of the sea at 57 degrees 2 1 minute north latitude and 39 minutes west longitude, about 70 meters deep.

The ship 955 class ship preserved to this day.