Which statement correctly describes the use of a discharge manifold?

Which statement correctly describes the use of a discharge manifold?

• A. Increase discharge pressure.
• B. Distribute flow from a single source to multiple lines or appliances.
• C. Feed a single line only.
• D. Distribute flow from a single source to multiple lines or appliances.

Answer: (D)

A discharge manifold is used to split the pump’s discharge flow into several outlets, so one source can feed multiple lines or appliances at the same time. This lets you run several attack lines, monitors, or other devices from a single discharge connection, simplifying connections and reducing the need for multiple pump discharges. It isn’t about increasing pressure; the pump’s pressure is determined by the pump setting and the demand in the connected lines, and branching can actually add friction losses. Feeding only a single line would not take advantage of the manifold’s purpose to distribute flow.

A discharge manifold is used to split the pump’s discharge flow into several outlets, so one source can feed multiple lines or appliances at the same time. This lets you run several attack lines, monitors, or other devices from a single discharge connection, simplifying connections and reducing the need for multiple pump discharges. It isn’t about increasing pressure; the pump’s pressure is determined by the pump setting and the demand in the connected lines, and branching can actually add friction losses. Feeding only a single line would not take advantage of the manifold’s purpose to distribute flow.