Question: Into what other river does the river fed by the spring whose name means "Blue Pot" feed?

Context paragraphs:
Vaucluse: The Vaucluse (] ; Occitan: "Vauclusa" in classical norm or "Vau-Cluso" in Mistralian norm) is a department in the southeast of France, named after the famous spring, the Fontaine-de-Vaucluse.  The name Vaucluse derives from the Latin Vallis Clausa (closed valley) as the valley here ends in a cliff face from which emanates a spring whose origin is so far in and so deep that it remains to be defined.

Manavgat River: Manavgat River (also called Til and Melas in old historical texts) originates on the eastern slopes of Western Taurus Mountains in Turkey.  At an elevation of 1,350 m, the outflow of several small springs joins together to become the headwaters of the Manavgat.  The largest of these springs is called Dumanli, whose name means "place where there is fog", because of the dense mist that forms above the spring.  In addition to the springs from the Taurus Mountains, the Manavgat is also fed underground from large lakes to the north of the mountains, on the Anatolian Plateau.

Blau (Danube): The Blau (] ) is a 15 km long river in Baden-Württemberg, southern Germany, and a left tributary of the Danube.  The source of the Blau is the karst spring of "Blautopf", in the town Blaubeuren, in the Swabian Jura.  It flows east through Blaustein to the city of Ulm, where it empties into the Danube.

Goroku River: The Goruko River (五六川 , "Goroku-gawa" ) is a river in Japan which flows through Gifu Prefecture.  It empties into the Sai River, which is part of the Nagara River system.  The river, whose name means "Frozen Dark One", was named after Mieji-juku, the 56th post town on the Nakasendō, a historical trading route.

Driffield Beck: Driffield Beck, East Riding of Yorkshire, England, is one of the premier chalk stream fly fishing rivers in the United Kingdom.  The river is often referred to as the Driffield West Beck, and is a river fed by many small chalk streams in the area.

Spring creek: A spring creek is a type of free flowing river whose name derives from its origin: an underground spring or set of springs which produces sufficient water to consistently feed a unique river.  The water flowing in a spring creek may additionally be fed by snow pack or rain run-off, as in most traditional free-flowing rivers, but often the entire water source for a spring creek is an aquifer or other underground water source.  For this reason, spring creeks are often filled with very pure, clean water and also demonstrate water flows that are smooth, consistent, and unwavering throughout the seasons of the year - unlike rivers filled with run-off or spring and summer melt-off from snow pack, whose water flows, water clarity, and water conditions often vary highly over the course of the year.  In addition, water temperatures in spring creeks tend to vary less throughout the seasons of the year than traditional creeks and rivers because they are fed by underground water sources.  Because of the depths of these water sources, spring creeks often emerge from their source or headwaters very cold and stay that way over the length of their runs.  In addition, due to the consistent water flows and the fact that spring creek water is "pushed" by the force of pressure from the source rather than "pulled" by the force of gravity downhill, spring creeks can flow through very flat sections of land with minimal depths over grades that might not sustain run-off creeks and rivers.  In these low-grade or flat sections of spring creeks, water flows can appear almost laminar with the surface of the creek appearing to be nearly flat and without the prominent riffles and surface disturbances caused by more rough or uneven surface bottoms found below free-stone run-off creeks and rivers surfaces.

Loup River: The Loup River (pronounced /lup/) is a tributary of the Platte River, approximately 68 mi long, in central Nebraska in the United States.  The river drains a sparsely populated rural agricultural area on the eastern edge of the Great Plains southeast of the Sandhills.  The name of the river means "wolf" in French, named by early French trappers after the Skidi band of the Pawnee, whose name means "Wolf People," and who lived along its banks.  The river and its tributaries, including the North Loup, Middle Loup, and South Loup, are known colloquially as "the Loups", comprising over 1800 mi (2900 km) of streams and draining approximately one-fifth of Nebraska.

Layered charge storage: Layered or stratified charge storage is hot water storage tank, typically for solar thermal energy.  The warmest storage layer is the top storage cylinder and below this there are colder storage layers through natural layering.  The water is fed into different storage levels, depending on the available feed temperature and current temperature layering.  The feed takes place via a vertical line via valves, in each case the feed water is fed into the storage layer with the corresponding water temperature.  This is achieved by means of self-acting valves, feeding the respective temperature or water density into the temperature layer.  The advantage is that there is no mixing of the storage temperature.  Swirling of the water is therefore to be avoided as far as possible in stratified storage tanks because this could lead to intermingling of storage layers.  This is reduced by means of measures such as limiting flow velocity and baffle plates at the inlets.

Blautopf: The Blautopf (German for "Blue Pot"; "blau" means "blue", "Topf" means "pot") is a spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge, in Southern Germany.

Tabaldak: Tabaldak is the creator among the Abenaki and Algonquian people of northeastern North America.  His name means "The Owner" who "created all living things but one".  Tabaldak created people out of stones, but thought these people's hearts were too cold.  He broke up these stones and left them scattered over the Abenaki land.  Next he tried wood, and out of these came the Abenaki people.  The only creature Tabaldak did not create was Odzihodo, whose name means "He Makes Himself from Something."  Initially Odzihodo only had his hand, and as he was not a creator of things, required help from Tabaldak.  By the time he was fully formed, Odzihodo had already transformed the world to his vision.  To do this, he piled dirt to make mountains, and dug lines for rivers.  He took great care in forming Lake Champlain, and happy with his work, turned into a stone.

Supporting paragraphs: Blau (Danube) Blautopf
Answer: the Danube