What should be done with the regulator when rinsing it?

When rinsing a regulator, it is important to leave it attached to the tank. This practice helps to ensure that the first stage remains dry and prevents water from entering the high-pressure chamber. Water could potentially cause corrosion or damage sensitive internal components. By keeping the regulator connected to the tank, it allows for a controlled and safe rinse, where fresh water can be run through the second stage and hoses to remove salt, sand, or debris while minimizing the risk of damage. It's essential to rinse the regulator properly after every dive to prolong its lifespan and maintain functionality. Other methods, like removing the regulator or using hot water, could lead to unnecessary risks or damage to the equipment.