water meter spinning no water running

2023-01-06

Why does the water meter spinning no water running?

Reason 1: Leakage from pipes or water appliances installed behind the water meter
The main reason is that the pipes installed behind the water meter are leaking, such as the pipes embedded in the wall or buried in the ground. The leakage of these pipes behind the water meter is often hidden. Even if you do not use water, the water leakage continues, so the water meter is still spinning. In addition, there are many types of household water appliances. Generally, if there is a leak, the user can find and repair it in time, but there is one, that is, the flush toilet in the household water appliance. The leakage of its water storage tank is not easy to be found. It is easy to cause the water meter to rotate.

Solution
1. When the water appliances in your home leak, you must remember to replace the damaged parts.
2. If the underground water supply pipe is leaking, first find where the water is leaking, then turn off the main gate of the water source, and then find professional maintenance personnel for maintenance.

Reason 2: There is air in the tap water pipe
The pipe behind the water meter is long, and it is easy to store air if it is not used for a long time. When the water pressure is high, the air will be compressed and released when the water pressure is low, causing the water in the water pipe to surge back and forth, and the water meter will rotate by itself, causing if the "running" of the water meter is broken, it may also cause the "reversal" of the water meter. However, these fluctuations are within the error range of the water meter. On the whole, the profit and loss of users are basically the same, and the people will not pay more for water because of this.

Solution
In view of the air in the pipeline that causes the water meter to run idly, the air in the pipeline must be removed. First, close the valve in front of the meter, open all the faucets behind the meter, drain the remaining water in the pipeline, and then open the front valve to discharge water for 1-2 minutes. Remove the air in the pipe; install a check valve in front of the meter. Since the water meter’s rotation is caused by pressure fluctuations and water compression, you can consider installing a check valve, which can prevent the water from flowing backwards.

Reason 3: The leather pad of the tap water tap is damaged
Most of the old-fashioned faucets are screw-type, and they need to be rotated 720° to fully open the faucet. When the leather pad of the old-fashioned faucet is damaged and the leakage is not obvious, the pointer of the water meter does not move. , The increase in water pressure causes tap water to flow out from the damaged part of the leather pad of the old-fashioned faucet, causing the water meter to rotate.

Solution
If your household is still an old-fashioned faucet, it is better to replace the damaged faucet leather pad as soon as possible, or replace it with a new-style faucet.

Reason 4: The installation of the water meter is unreasonable
The water meter is too close to the main pipe, and the pressure fluctuation of the main pipe water directly affects the water meter, causing the water meter to rotate, so the water meter is still rotating even if there is no water or leakage in the house. In addition, since most of the water meters go out of the house now, the household meters of one unit are all concentrated and installed on the same floor. Considering the convenience of meter reading, use a 40-50mm pipe to connect 6 or 12 water meters, the distance between the meters is small, and there are few straight pipe sections left by the water meters, which will also affect the normal measurement of the water meters and cause the water meters to rotate.

Solution
If the installation design is unreasonable, it is necessary to respond to the water company in time and cooperate with the professionals of the water company to solve it. Do not "do it yourself", otherwise disputes may arise.

Reason 5: Improper use of secondary water supply facilities
At present, the phenomenon of water meter rotation caused by secondary water supply is less, but the water meter rotation area caused by this reason is larger, the rotation frequency is higher, the water volume produced is also larger, and it is more troublesome to deal with.

Solution
When encountering large-scale, multi-household idling, be sure to find out whether there are secondary water supply facilities in the community, and whether there is a sharp fluctuation in water pressure. If there is a secondary water supply facility, disconnect it first, especially close the water inlet valve of the reservoir, and observe the water pressure change and idling of the pipe network. If the water pressure is stable and idling stops, it is necessary to refer to the pipeline diagram of the community to see whether the design is standardized, whether the laying meets the relevant technical regulations, whether the water storage time meets the requirements, etc. After checking and rectifying item by item, the idling problem will generally be resolved. If the secondary water supply facility is disconnected and continues to run idling, it is necessary to release air on the fire hydrant in the community until the accumulated gas is removed and the idling stops.

Reason 6: Washing machine and water heater store gas
Recently, a user said that after the renovation of one household and one meter in his home, he had not lived at home for nearly half a year, and suddenly received a water bill of more than 30 cubic meters from the water company, and had objections to the water fee. The user observed his water meter for several days and found that the hands of the meter were still turning forwards and backwards without using water, so he came to the water supply hotline to complain. After the staff arrived at the scene, they found that the household lived on the seventh floor, one meter had water inflow, one bathroom and one kitchen, and the water appliances were simple. After inspection, no internal leakage was found. It was observed that the water meter was indeed rotating irregularly. After opening all the water nozzles in the user's home to deflate the air, the idling speed has slowed down, but it has not been completely resolved. Checked again and found that there was an automatic washing machine directly connected to the pipeline of the household. When the water inlet of the washing machine was opened, we could hear the sound of magnetism. Then we loosened the cold water inlet pipe of his gas water heater and heard if there is a loud sound of deflation, and after the above deflation treatment, the idling of the water meter stops immediately.

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