The total water meter and the total value of the water table vary greatly
This is normal, the sensitivity of the water meter is not the same, the same flow, the high sensitivity of the water meter will turn, and the low sensitivity of the water meter will not respond. There may be leaks in the pipe, especially where the pipes are joined.
This can be self-examination: all the taps are closed, to see whether the total water meter is still walking. You can also ask the staff of the water company to check. They have special equipment. Two is to check the house of the water pipe, there is no previously connected bypass pipe, forgotten.
There is a difference of 20 tons between the total table and the minutes. I think there are two possible problems. One is the leakage of water pipes (especially those buried in the ground) behind the surface of the water table.
