What should the overbottom pressure be set to when diving with the MK20 scuba?

The overbottom pressure for diving with the MK20 scuba is typically recommended to be set at 135 PSIG. This setting is crucial for ensuring adequate performance and safety under various diving conditions. The overbottom pressure is a measure that helps to counterbalance water pressure during a dive, thereby preventing any adverse effects such as barotrauma or equipment malfunction.

Setting the pressure too low may not provide sufficient breathing gas flow or could hinder the operation of the diving system, while setting it too high could lead to unnecessary stress on the diving apparatus and could affect the diver’s ability to manage their buoyancy effectively. Maintaining the overbottom pressure at 135 PSIG allows for optimal gas delivery and safety, ensuring that divers can focus on their tasks without the distraction of pressure-related issues.