In winter (December-February), when there's severe cold weather, the temperature becomes below freezing and water pipes tend to freeze.
If the water pipe freezes, the water can no longer be used, causing trouble in the customer's daily life such as washing, cooking, bathing, using the toilet, etc. At the same time, unexpected time and expenses may occur.
If you made a request for de-icing work at peak hours, we cannot assure there will be maintenance on the same day, so please check the weather forecast frequently, and if the temperatures are expected to drop in the next morning,please prepare the water pipes and water heaters to prevent freezing.
※Please keep in mind that freezing can occur even if you leave your room for a few days.
Please be careful of sudden freezing
There are three main ways to prevent freezing.
① Drain the water from the water pipe
If the water in the water pipe is emptied, the water will not freeze.
Be sure to drain the water pipe when the temperature is below freezing or when the water will not be used for several days.
※Draining is the most effective way to prevent freezing. Please refer here for the water draining mechanism.
②Keeping the water pipe warm so that the water does not freeze
It can be effective protecting the exposed part with a heat insulating material, towel, cloth, etc.
●Around water meter
Put a towel or a heat insulating material in the meter box to keep the water pipe near the meter warm.
(Please pack it in a plastic bag to prevent it from getting wet.)
●Around the water heater
If strong cold air enters from the gaps, it may cause freezing as well.
Please try wrapping a towel around the part where the water pipe is exposed to keep it warm.
※ If the insulation tape is severely damaged, please contact us using the "Inquiry Form" or call the service center.
Electricity flowing through the main body of the water heater prevents freezing.
In some properties of cold regions, there will be a heater (electric heating wire) used to prevent freezing that is wound around the outer water supply pipe. Please do not drop the electric breaker during the winter season.
●Inside the building
If the temperature is low enough, the indoor water pipes and faucets may freeze (kitchen, bathroom, etc.).
Open the apartment doors to keep the whole room warm, and wrap towels around faucets and water pipes.
③Keeping the water flowing
If the water in the water pipe is always flowing, the water will not freeze.
Freezing may be prevented by letting flow a small amount of water from a faucet in the bathroom before going to bed.
※If you choose this method, please pay attention to the amount of water used and the cost.
※If the hot water is left unattended, there is a possibility that the gas safety device may be activated. Answer Link
When frozen
●When water comes out but no hot water
The water pipe of the water heater may be frozen.
Cover the water pipe with a towel, and slowly pour warm water over it.
※Please note that hot water may damage the tube.
If there is an outlet near the water heater, it is also effective to warm it with a dryer.
● When there is neither water nor hot water
Since its unknown where it's frozen, there is a need to try the whole process.
Cover the exposed water pipe (near water meter / water heater) or faucet with a towel, etc., and slowly pour warm water over it.
※Please note that hot water may damage the tube.
Also, open the doors in the room so that the whole room is warm.
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