Hello, I am studying fluid mechanics and we have worked on Bernoullis theory a lot over the past couple of years. I am really struggling to grasp the concept of the theory and what it is about. Bernoulli states that in a system the pressure will always be constant (hence Pt = Ps + Pv + Ph) at any point. Can any one explain this to me. My understanding is that the more head in a system over a particular outlet the higher the potential (Ph) and the static head (Ps), so how can the outlets with a lower head equal the same pressure? Would static pressure be calculated as the potential head (p.g.h) + atmospheric pressure, then the total pressure would be the sum of the Ph + Ps + the dynamic velocity which would be given in m/s? Again my understanding is the more head involved the higher the velocity pressures, so how does a tap with only 3m of head have the same total pressure as a tap with 10m of head? If there's any examples of this to show the thoery or simple table calculations this would be very useful.