Blender fluid simulation "with drag" (simulating a pump) I need to do a fluid simulation, where the fluid goes through a pump. 
The pump-model is build the way, that the intake is at the bottom and the output is at the top. I need a way to get the fluid all the way up through the pump. I believe there's no thing like a "drag water from here to there and also mind the obstacles" option for this, is there? Is there another way?
The only way i can think of is having a tank/reservoir that is as high (or higher) than the pump, so that the water rises up all the way through the pump. 

So, basically i need to simulate the pump.

Here's a picture to help explain what i need to achieve:
Perhaps you could use a chain of control objects which follow a path in the center of the pipe. I have attached my blender file that generates this animation.

I have a pipe (which would be your pump) set to Obstacle under Fluids and it has Shell initialization.

I have a domain surrounding the simulation and some fluid at the bottom to be sucked up.

The most important thing is the short cylinder which is a Control fluid object. Play with "Attraction" and "Velocity" to get suction. It follows a path I made in the center of the pipe. Perhaps you could use an array of these controls to have a constant suction/drag on the water. Or you could cheat and have an "inflow" at the end of the out pipe and an "outflow" at the opening. Then if your pipe is not transparent, it will look like water is going in and coming out. I can make an example of this if you want.