Hydraulic Principles

Pressure is perpendicular to any surface on which it acts

Pressure at any point of a fluid at rest is of the same intensity in all directions

Pressure applied from outside to a fluid contained in a vessel is transmitted in all directions

Downward pressure of a fluid in an open vessel is proportional to its depth

The downward pressure of a fluid in an open vessel is proportional to the density of the fluid

The downward pressure of a fluid on the bottom of a vessel is independent of the shape of that vessel