However in the end, an underwater welder’s life span doesn’t specifically depend top top one factor. I went to job corps a while back and took a welding class until my class opened up. Seven Reasons Why Veterans Make Great Underwater Welders Dry welding is commonly referred to. Underwater welder life expectancy reddit . Although the data is entirely based on some investigations, it is therefore not conclusive. Average underwater welder life expectancy. The top 10% of welders make $26.10 an hour and the bottom 10% make $12.05. Some welding you may go in and not make much so pipefitting would be better for pay, some you get a lot of overtime so you make a lot and some welding is like underwater welding where it is horrible for the health and cuts your life expectancy in half but you will make 300 dollars a hour. Hyperbaric welding can either take place wet in the water itself or dry inside a specially constructed positive pressure enclosure and hence a dry. Under water welde...