What would be the first indication that a tube leak has occurred in area '23'? Illustration MO-0111

Correct Answer: Option A — The level in area '1' would decrease.

In marine freshwater distillers, area 1 typically represents the evaporator shell or feed source. A tube leak in area 23 allows distillate to escape into the cooling medium or bilge, causing the liquid level in the evaporator shell to drop.