How to discharge sewage from radiators: hot topics and operation guides on the Internet in the past 10 days
With the arrival of the winter heating season, radiator emissions have become a hot topic on the Internet recently. Many users report that the radiator is not hot and noisy, and most of them are related to the accumulation of internal impurities. This article will combine the hot content of the entire network in the past 10 days to provide you with a detailed analysis of the correct method for radiator discharge, and attach relevant data for reference.
1. Hotspot data related to radiators on the entire network in the past 10 days
| Topic keywords | Search volume (daily average) | Main discussion platform |
|---|---|---|
| The radiator is not hot | 12,800 times | Baidu knows, Zhihu |
| Radiator sewage discharge | 8,500 times | Douyin, Xiaohongshu |
| Abnormal noise from radiator | 5,200 times | Weibo, Bilibili |
| Radiator cleaning | 3,900 times | Taobao Q&A, JD customer service |
2. The necessity of radiator discharge
According to data from heating companies, the thermal efficiency of radiators that are not regularly discharged will be reduced by 30%-50%. Long-term accumulation of scale and impurities can cause the following problems:
1. The heating effect decreases and the room temperature is difficult to reach the standard.
2. Accelerate pipeline corrosion and shorten equipment life
3. Increased water flow noise affects living comfort
3. Radiator drain operation steps
| steps | Operating Instructions | Things to note |
|---|---|---|
| 1. Close the valve | Close the inlet and outlet valves and wait for the system to cool down | To avoid burns, it is recommended to wait 2 hours |
| 2. Prepare tools | Bucket, rubber hose, wrench, rag | The diameter of the rubber pipe must match the drain valve |
| 3. Open the drain valve | Just turn it 1/4 turn counterclockwise | Never completely remove the valve |
| 4. Collect sewage | Use a bucket to catch the discharged turbid liquid | It is recommended to wear rubber gloves |
| 5. Flush the system | until clear water flows out | Observe changes in water quality |
| 6. Restore the system | Close the drain valve and open the water inlet and outlet valves | Check for water leaks |
4. Suggestions on the frequency of sewage discharge for different radiator types
| Radiator type | Recommended discharge frequency | Best time period |
|---|---|---|
| cast iron radiator | 2 times a year | Before and after heating |
| Steel radiator | 1 time per year | Mid-heating season |
| Copper-aluminum composite radiator | Once every 2 years | After stopping heating |
5. Answers to recent frequently asked questions from netizens
Q: What should I do if the radiator is still not hot after draining the sewage?
A: There may be an air blockage in the system, and the exhaust operation needs to be performed first. Find the exhaust valve on the top of the radiator and slowly turn it with a screwdriver until the gas is released.
Q: Why is it found that the water flow is very small during sewage discharge?
A: It may be that the filter is clogged and the Y-type filter at the entrance pipe needs to be cleaned. It is recommended to contact the property management or professional maintenance personnel to handle it.
Q: Will draining the sewage myself affect the pressure of the heating system?
A: Single-household operation has little impact on the overall pressure of the system, but attention should be paid to observing the pressure gauge after blowing off the sewage. The normal value should be between 1.5-2.0bar.
6. Professional advice
1. In old communities, it is recommended to carry out sewage discharge operations under the guidance of the property management
2. The floor heating system requires professional equipment to drain sewage, and it is not recommended to do it yourself.
3. If water leakage is found within 3 days after sewage discharge, the valve should be closed immediately and reported for repair.
Regular sewage maintenance can not only improve heating efficiency, but also extend the service life of the radiator. According to recent hot Internet feedback, correct sewage discharge can increase room temperature by 2-5°C and reduce energy waste by more than 30%. It is recommended that users establish a scientific maintenance plan based on the type of their own radiators.
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