What is the last water stop depth for all in-water decompressions?

The last water stop depth for all in-water decompressions is 20 feet. This depth serves as a critical point in the decompression schedule, allowing divers to ensure that they are sufficiently off-gassing and decreasing their risk of decompression sickness as they ascend.

Decompression stops are strategically placed to provide divers with the opportunity to safely release inert gases that have accumulated during their dive. The 20-foot stop is effective because it is shallow enough to reduce the ambient pressure on the diver's body, facilitating the release of these gases while still allowing for adequate safety measures before reaching the surface.

Establishing a final stop at 20 feet ensures that divers can perform necessary final checks, monitor symptoms, and manage any residual nitrogen in a controlled environment, significantly enhancing overall safety during the ascent process.