1. The problem statement, all variables and given/known data I just need a concept explained, then I can figure out the numbers. A tank with depth h is being filled through a hole from the bottom. The velocity of the water from the hose is known as well as the size hole. Pressure at the top of the water column is atm. What is the pressure at the bottom, just in front of the hose? 2. Relevant equations 3. The attempt at a solution I assumed that the pressure had to be simply (density)(g)(h) but this was wrong. The velocity has to be taken into account. How do I do this?