/diy/ - Do It Yourself

Not hard so much as dangerous
Navy ship gas tank cleaner
>temporary contract job to clean gas tanks of navy ships
>after all gas is drained, go down to engineering, open the floor, open the hatch and crawl inside the gas tank itself
>crawl on your stomach for 100ft or so before its opens up into a slippery metal cavern the size of a small building
>literally gas tank spelunking
>if you slip and get hurt , theres no way out, your fucked