The water meter is not bad, the pipe doesn't leak, but the water meter doesn't read properly
Or someone might have stolen water from your home.
If there is no problem with the water meter, it may be that the water delivery pipe is out of order.
You can turn on the tap water quality appraisal and water to the bucket, released 50 kg of water, water meter reading should be increased to 50L (because the density of water is 1 kg / cubic meter), can do a few test.
