If your family situation has changed or you are using more water, you can have the interim amount increased.

Change amount or frequency
How is this interim amount calculated?

Please note: for interim drinking water invoices, keep your current meter reading at hand, as this allows us to adjust the new interim amount to your actual consumption.

For interim invoices for private water, we take into account a flat-rate consumption based on the number of residents registered at your address. We therefore advise you not to change your interim amount.