Puzzle:Underground Water Treatment Plant

How to fix the Underground Water Treatment Plant

Fixing the plant will give you another Achievement ("Reserve : Supply the city with fresh water")

After escaping the fire, you will enter the plant and on the monitor you can see it's Initial state:

Turn off the 4 big flocculation pool pumps:

While the alarm still sounds, open all orange card doors (one will not open):

In the locker room you will find a green access card:

On the first floor, in men toilet room, inside the toilet there is a yellow access card (DON'T FLUSH THE TOILET!!!):

Stop the alarm (it's is annoying :) ):

Go to the second floor, to the control room and access it:

On the desk, yo will find the correct water flow and the water plant key:

To be continue.....