It is necessary to first create your water meters. Once you have done this, go to the Company Dashboard, navigate to Locations → Usage.
In the left menu under Usage, click on Water:
You will see an overview of the water meters you have created. Select the relevant meter by clicking on its name.
You will then see an overview of previous registrations. If this is the first registration, there will naturally be no records yet.
To create a registration, click on + Registration. In the pop-up, enter the date of your registration and then your consumption. Then click Save. The registration will be immediately visible.
Repeat these steps for all water meters.