Water can flow up hill if there is some sort of machine that is able to pull it. Water does not naturally flow up hill it always flows downstream due to gravity.
Ground water is the water that occupies pore and void space below the surface of the earth. This water will flow if their is a suitable pathway (e.g. a porous and permeable rock forming an aquifer) from a region of high to low hydraulic head.
to provide water flow througj gravity and pressure
A bad thermostat, or in rare cases, a bad water pump.
A flow control valve is used to control and regulate the flow or pressure of fluids. A flow control valve may be used to regulate gas, steam, water and chemicals.
water
water cannot flow uphill
Water can defy the force of gravity and flow uphill. This is possible when a device called a hydraulic ram is used. A wick action such as a rope can cause the water to flow uphill.
Momentum. :]
Water obviously doesn't flow uphill, but if there is a lot of water in something like a valley, it will rise up the hill on either side, so in that way it can go uphill.
The Nille River flows uphill
They could in theory.
Uphill
Down hill, Think of it, Niagara Falls, the water is falling downhill, Niagara's water comes from St. Lawrence Seaway.
You can run water uphill with a garden hose by decreasing the size of the hose as it moves away from the water source. By decreasing the hose size, pressure in the hose increases and the water will travel uphill.
It would be less work to build and water doesn't flow uphill.
My guess is that the water is pushed through and uphill from the water pressure of the volume of water following from a higher altitude. The water has no where else to go in short. Gravity
No. The water flows downstream. Correction, I believe the Amazon flows upstream