According to one aspect, a master control module controlling multiple valve assemblies on a marine vessel may include a receiver, an input component, a processor, and a transmitter. The receiver may receive positional status signals from corresponding individual control modules. Each positional status signal may be indicative of a positional status of a valve assembly corresponding to a respective individual control module. The input component may receive a command pertaining to one or more of the valve assemblies, including a desired flow characteristic and/or a desired time. The processor may generate control signals for the valve assemblies in accordance with the desired flow characteristics. The transmitter may transmit the control signals to the respective individual control modules to effectuate the desired flow characteristic accordingly.