The Power of Water at 60,000 PSI October 25, 2021 https://goodnewsplanet.com/wp-content/uploads/2021/10/WhatsApp-Video-2021-10-25-at-8.59.59-AM.mp4 That’s almost 27 tons per square inch. The water pressure at the bottom of the marianas trench (Challenger Deep) is a crushing eight tons per square inch—or about a thousand times the standard atmospheric pressure at sea level.