This document describes an experiment to determine the center of pressure and hydrostatic force on a submerged body. The objectives are to understand hydrostatic pressure distribution and verify the location of the center of pressure. The apparatus is a ring-shaped water vessel mounted on a pivot, allowing measurement of the moment due to hydrostatic pressure. The theory section explains how hydrostatic pressure varies with depth and how this relates to the resultant force and center of pressure on a submerged surface. Calculations are provided for determining these values for the apparatus based on measurements of water level and applied weight. The procedure describes how to set up and perform the experiment.