Selectable filtration water dispenser

A method of operating a water-dispensing device having a source water intake, a spigot, a first common line downstream of the source water intake, a second common line downstream of the first common line and upstream of the spigot, two or more branch lines connected to the first and second common lines, at least one of the branch lines including one or more enhancement filters configured to provide additives to water traversing the respective branch line, a flushing line downstream of the two or more branch lines and upstream of the spigot, a flushing valve, a flushing pump, and a controller, the method comprising:

• performing a dispensing operation, by the controller in response to receiving a water selection corresponding to one of the two or more branch lines, by routing water from the source water intake through the first common line, the one of the two or more branch lines corresponding to the received water selection, the second common line, and the spigot;
• and
• performing, by the controller, a flushing operation including:
• (i) opening the flushing valve and actuating the flushing pump to draw water from the second common line into the flushing line,
• (ii) determining whether flushing of the second common line is completed, and
• (iii) upon determining flushing of the second common line is completed, closing the flushing valve and deactivating the flushing pump.

A water-dispensing device comprising:

• a source water intake;
• a spigot arranged downstream from the source water intake;
• a common line downstream of the source water intake;
• two or more branch lines, each of the two or more branch lines being connected at one end to the common line and at an opposite end to the spigot, at least one of the branch lines including one or more enhancement filters configured to provide additives to water traversing the respective branch line, each of the two or more branch lines having a branch valve configured to selectively place the respective branch valve in fluid communication with the common line;
• and
• a controller configured to:
• (i) receive a water selection corresponding to one of the two or more branch lines, and
• (ii) in response to receiving the water selection, open the branch valve of the one of the two or more branch lines corresponding to the received water selection.