Why maintain water at the water seal pot on marine exhaust system?

Maintaining water in the water seal pot of a marine exhaust system is crucial for preventing backflow of exhaust gases into the engine or cabin, which can be hazardous. The water acts as a barrier, creating a seal that helps to dissipate heat and reduce noise from the exhaust. Additionally, it aids in the effective removal of exhaust gases, ensuring optimal engine performance and preventing potential damage from overheating or corrosive elements.