The water fee has been overpaid, so you need a refund. Is it tricky to set up a water meter at home?

Yes The purpose of setting up a water meter at the entrance of the property is to re-measure the water quantity to determine whether there are problems such as water leakage. This is a normal operation, but there are also some problems. If the property deliberately adjusts the reading when setting the water meter, or uses an inaccurate water meter, it will deliberately calculate more water, thus reducing the refund amount.