What is the desired overbottom pressure required from 0-60 FSW when diving the KM37?

The desired overbottom pressure for diving with the KM37 from 0-60 FSW (feet of salt water) is specifically designed to ensure optimal performance and safety during a dive. At depths up to 60 feet, the ambient pressure increases due to the water pressure, which is approximately 2.5 psi for every foot of seawater.

As you descend, divers need to accommodate both the increasing water pressure and ensure that the supplied air remains breathable and adequate for the needs of the diver. The significant thresholds of overbottom pressure ensure that there is enough pressure to keep the system functioning effectively, circumvent potential issues with breathing air, and prevent the risk of the diver experiencing any form of gas narcosis or hypoxia.

The 135 psi value serves as a standard level that provides a safety margin above the ambient pressure encountered at 60 FSW, thus allowing the diver sufficient air for breathing even as pressure increases. This choice reflects best practices in diving operations, where proper overbottom pressure is crucial for maintaining diver safety and system performance during submerged activities. The necessary overbottom pressure must be calculated to account for the dynamic changes in pressure in the underwater environment, ensuring that divers can operate safely at the specified depths.