Where should an accumulator tank be located in a potable water system?

An accumulator tank should be positioned after the pump and filter but before the check valve in a potable water system to ensure optimal performance and efficiency. This location allows the accumulator to receive pressurized water directly from the pump, which it can store and regulate based on demand.

By being situated after the pump, the accumulator takes advantage of the pressurized output to maintain a consistent flow and pressure within the system. This setup aids in reducing the cycling of the pump, which can prolong its lifespan and improve overall energy efficiency. Moreover, placing the accumulator after the filter ensures that the stored water is clean and free from particulates.

Locating the accumulator tank at the storage tank would not provide the necessary pressure regulation and could lead to inadequate flow rates during peak demand. Similarly, positioning it before the filter would mean that any sediment or impurities present could enter the accumulator, potentially leading to contamination of the stored water. Hence, the selected position maximizes both the functionality and safety of the potable water system.