After getting inside the sewer of South Park, I used alien probe to cross the gap. And then climbed down the stairs. Now I can see a water flowing down. There is a valve above it. How do i reach it?
How to get past vertical sewage pipes
south-park-the-stick-of-truth
Related Solutions
While in combat You have to select it from your inventory just as you would any other consumable item. Then use it on opponent.
Pressing the console to the right of you moves the platform closer to teleport-robot at the bottom-left of the screen.
This leads to a console you can press.
You must also use the upper teleport-robot to go up. There's a second console in the upper-left of this level to press.
This opens a passageway on the left-side of this level, leading to a boss-fight and the third-and-final console.
Best Answer
To get through the sewer flow, you'll see the valve above it twinkeling a little. When they do that you can shoot at it.
Shoot at the valve.
Edit: As Eric Tobias said there are 2 kinds of valves, the ones on top of the pipes which you can shoot, and the yellow ones next to the pipes which you can use by activating them.