More Terraforming

...Ok...
After thinking about the hose issue, I realize that could be very dangerous. Even with a bunch of slack...one quick punch in the wrong direction and you would have basically a whip traveling hundreds of miles an hour near the surface.
So...even though the idea could still work...I came up with another idea for pumping the water into space.
In one of our No-Fly zones, build a very very very very tall pipe. It could be relatively thin if you wanted it to be, but would have to be pretty darn sturdy. Design it in such a way that water can ONLY travel up. You could but flow preventers every few feet or so. That way..once the water gets beyond a certain point, it would not fall back down.
Pump the water into space!!
You could pump as much as you wanted...so long as the pipe holds up.
...Just do not let it fall over.
It will require some awesome levels of reinforcement...but once it is done...You can pump as much water to Mars as you want. Just get someone up there to tow it over.

...
I still kind of like the hose idea, though.