What should be done to increase or decrease fluid pressure in physics?

Since the pressure in a liquid, according to the laws of hydrostatics, depends on three factors: the density of the liquid, the force of attraction and the height of the “water” column. Then you need to change these three values – the density can be changed by compressing the liquid, the force of gravity only by changing the planet or moving in space, and the height of the water column either by the shape of the vessel (if the base area of the vessel is different) or by the amount of liquid in the vessel.