Turbo Water lines

[BlueTuner]

Ok, so i noticed that i have a random steel line near my turbo just there. I went and asked my mechanic and he said it was my water lines for my turbo. Also the lines for the pump are bypassed. My question is how important are the lines and how much will it cost to get a new pair. I found these. will they work. Here are some pictures to show you. I dont know much about turbos so any information will be great.

Thanks



Here is the line on top of the turbo.



and here is the bypass line.