What is a common failure mode in sprinkler systems with gravity tanks?

In sprinkler systems that utilize gravity tanks, a common failure mode is insufficient water supply. This issue can arise from several factors related to the design and operational mechanics of gravity-fed systems.

Gravity tanks depend on the elevation of the water storage to generate the necessary pressure for distribution through the sprinkler system. If the tank runs low due to inadequate replenishment, leaks, or unexpected demands on the system, there may not be enough water available to effectively suppress fires. This situation is particularly critical during emergencies, as a lack of sufficient water supply directly impacts the system's ability to function as intended.

While other potential failure modes like electrical failure or pump overheating are important to consider in different types of systems, they are not specifically linked to the gravity-fed nature of these tanks. Corroded pipes can also affect water delivery but would generally not be classified as a failure specific to the tank's design and operation. Thus, recognizing insufficient water supply as a prevalent issue in gravity tank systems helps highlight the importance of regular maintenance and monitoring of water levels to ensure reliability.