What is the disadvantage of hydro-pneumatic tanks?

Hydro-pneumatic tanks primarily function to maintain pressure in water supply systems. One key disadvantage of these tanks is that they typically have limited storage capacity. While they are excellent for taking care of pressure fluctuations and ensuring a steady water supply, their design often means they are not as effective for holding large volumes of water.

They are more about pressure maintenance and less about providing significant water storage like traditional storage tanks. This limited capacity can be a drawback, especially in situations where a large volume of water is needed at peak demand or where a longer water supply duration is necessary during outages.

Other aspects, such as needing constant monitoring or maintenance costs, are important considerations in managing hydro-pneumatic tanks, but they do not define the primary disadvantage in terms of their capacity compared to other tank types.