What is the purpose of a pressure tank in a water distribution system?

A pressure tank plays a crucial role in a water distribution system primarily to maintain consistent pressure and reduce the frequency of pump cycling. When water is drawn from the system, the pressure tank allows for a buffer of water to be available, which helps to keep the water pressure stable within the distribution network. This function is essential because it ensures that users experience a reliable flow of water without significant drops in pressure, which could occur during peak usage times.

In addition, by moderating the on-and-off cycling of the pump, the pressure tank helps prolong the life of the pump and minimizes energy consumption. Constant cycling can lead to wear and tear on the system, potentially causing premature failure. Therefore, the pressure tank serves not only to balance pressure but also to enhance the overall efficiency and longevity of the water distribution system.