Who covers the cost of checking the accuracy of measurement of a water meter?

If the check-up reveals that the water meter’s accuracy of measurement is within the limits of permissible error (+/-4% or +/-10%), then the costs are incurred by the customer; if this is not the case, AS Tallinna Vesi covers the expenses. If the accuracy of measurement is beyond the limits of permissible error, a recalculation is made by the error of measurement for half of the period starting from the date when the water meter was installed in the house but not for more than 6 months.