From around January 7, 2021, there is a possibility of a strong winter-type pressure distribution, and there is a risk of another cold wave. Please check the daily weather forecast and take measures to prevent water pipes from freezing in case of emergency.
『 In this case, beware. 』
▽ If midwinter days (days when the outside temperature is less than 0 ° C all day long) continue.
▽ If you do not use the water supply for a long time, such as before going to bed or when you are away from home.
In addition to the above, areas on the north side of the property that do not receive sunlight or are exposed to strong winds are also susceptible to freezing, even if the temperature does not drop that much.
When the water pipe is frozen, water can not be used, it will cause some troubles with wash, cooking, bathing, toilet, clothes washing and unexpected time and expense will also occur.
When you ask us for deicing procedure especially peak time, it might be difficult to visit and repair on the same day. Also, if you check the weather forecast frequently and you might expect that the temperature drop of the next morning can be expected, please prevent freezing of water pipe and water heater.
※ Be especially careful when you do not use the water supply for a long time, such as before going to bed or when you are away from your apartment for a long time, as the water pipes are more likely to freeze.
Freezing prevention method
- Drain all the water out of the pipes.
If you drain the water in the water pipe, the water will not freeze. When the temperature falls below freezing, you will not be able to use the water supply for a few days, please be sure to drain water pipe.
※Drainage" is the most effective way to prevent freezing. Click here to learn more about how water drainage works.
How to perform the draining of the pipeline. (Nagano/Yamanashi when there is anti-freezing installation)
- Keep the water pipes warm and the water will not freeze.
If you are able to protect the exposed part with lagging material, towel, cloth, etc., it may be effective for pipes.
◇The water meter
It can be warmed by packing a towel or lagging material in the meter box.
（Be sure to pack lagging material in a plastic bag to keep them dry before putting them in.）
If strong cold air enters from the gap, it will cause freezing. Wrap the towel etc. in the part where the water supply pipe is exposed and keep it warm.
The water heater is electrified and it can prevent freezing by itself.
In some cold areas, it is necessary to be wrapped with a heater (electric heating wire) for anti-freezing around the outside water supply pipe. Please do not turn off the circuit breaker during the winter season.
◇Inside the building
If the temperature is low, the water pipe and the faucet near the indoor side(kitchen/bathroom etc.) may freeze. Try to open the doors, after that warm air goes through out the room, using towels is helpful to keep it warm for faucet or water supply pipe.
- Turn on the water
Water is not freezing if water is trickling down from the faucet. Before go to bed, if you turn on a small amount of water from a faucet such as a bathroom, you may be able to prevent freezing.
※Please be aware that excessive water, it will be charged.
※If you leave the hot water running, there is a possibility that the gas safety device may operate, so please do not leave hot water running . Answer · Link
When it got frozen
- When water does come out but hot water does not come out
There is a possibility that the water supply pipe of the water heater is frozen. Please cover the water supply pipe part with a towel etc. and slowly pour hot water (lukewarm water) from above.
※Please be aware that piping may break if pouring burning hot water. If there is an outlet near the water heater, warming with a hair dryer etc. is also effective.
If there is an electrical outlet installed near the water heater, heating it with a hair dryer can also be effective.
- When neither water nor hot water comes out
When you do not know the part that is frozen, you need to perform the perfunctory tasks. Please cover the exposed water pipes (near the water meter and the water heater) with towel and the faucet as well, and then slowly pour hot water (lukewarm water) from above.
※Please be aware that piping may break if pouring burning hot water. Please open the door in the room so that warm air goes to the room
Also, open the doors in the room to allow warm air to spread throughout the room.