Which condition is indicative of static pressure in a water system?

Static pressure in a water system refers to the pressure exerted by a fluid at rest. When water is not moving, the pressure at any point in the system will be determined solely by the weight of the water above that point, in addition to atmospheric pressure. This condition allows for a clear measurement of pressure without the variables introduced by moving water, such as velocity or friction losses, which could alter the readings.

In contrast, water movement would indicate dynamic pressure, as the kinetic energy of the moving water influences the overall pressure readings. Water freezing pertains to temperature considerations rather than pressure aspects. Water height can impact static pressure to some extent, as greater height means greater pressure due to gravity, but it is not indicative of static pressure by itself without the context of movement. Therefore, the most direct indication of static pressure is when water is not moving, confirming that the readings taken reflect the static condition of pressure within the water system.