Pressure tanks are typically used in conjunction with which type of water source?

• A. Municipal water supply
• B. Private wells
• C. Reclaimed water
• D. Rainwater harvesting

Answer: (B)

Pressure tanks store water under pressure to provide a stable, ready supply and to smooth out pressure swings caused by a pump cycling on and off. This is especially important with private wells, where there isn’t a utility-provided, continuously pressurized supply. The tank acts as a buffer between the well pump and the irrigation or household fixtures, reducing pump wear, preventing rapid on/off cycling, and delivering more consistent pressure to sprinkler heads and other outlets.

With a municipal water supply, pressure is typically controlled by the utility, so a pressure tank isn’t as essential to meet basic pressure needs. Reclaimed water and rainwater harvesting systems can be pumped and may or may not include a pressure tank, but the standard pairing that most irrigation designers rely on to ensure steady pressure and pump protection is a private well with a pressure tank.