This experimental unit enables students to explore hydrostatic pressure in liquids through practical experiments. It demonstrates how the weight of fluids exerts pressure when at rest, known as hydrostatic or gravitational pressure. The equipment directly measures the moment caused by fluid thrust on a submerged plane surface. A PVC quadrant, mounted on a balance arm pivoted at its center, experiences hydrostatic forces when immersed. The balance arm includes an adjustable counterbalance and weights for precise measurement. A clear acrylic tank with a controllable valve allows water levels to be adjusted as needed.