What type of system is likely used if a high-rise building relies solely on pressure from a central water tank for its water supply?

In a high-rise building that relies solely on pressure from a central water tank for its water supply, the system in use is accurately identified as an upfeed system. This type of system is designed to elevate water from a lower elevation (the water tank) up to the higher floors of the building using pressure generated from the tank itself.

The upfeed system allows water to be distributed to various levels of the building using the force of gravity aided by the water pressure present within the tank. It is essential in high-rise construction, as natural gravitational flow is often insufficient to reach the upper floors due to the height of the structure.

In this context, the placement of the water tank and its ability to maintain adequate pressure is critical for effective water distribution, making the upfeed system the go-to choice for such scenarios. This choice highlights the importance of utilizing hydrostatic pressure for distributing water effectively across multiple stories in high-rise buildings.