How much water do you use? Well, today's picture is of a giantic water meter.
No, I don't think this is for the apartment that you stay in. This meter is at the mains. If I am not wrong, it's one way to track if there are leakages. If meters are fixed along the pipes and measure the flow that goes through, you will be able to tell that underground pipes are leaking if the difference is great.
Do you conserve water? Or recycle water at home?