How to detect a leak in a pipe? What are the causes of leaking pipes?

In life, we will encounter such and such troubles, in which the water pipe is an indispensable part of every home life, although the pipe is a hidden part, but the pipe leakage often occurs. Since it is a hidden part, how can the water detect a leak in the pipe. There are many reasons that can lead to the occurrence of water leakage in the water pipe interface.

Therefore, there are some things to understand about the causes of pipeline leakage. In life, we will encounter such and such troubles, in which the water pipe is an indispensable part of every home life, although the pipe is a hidden part, but the pipe leakage often occurs. Since it is a hidden part, how can the water detect a leak in the pipe.

There are many reasons that can lead to the occurrence of water leakage in the water pipe interface. Therefore, we need to do some understanding of the causes of pipe leakage.

How to detect a leak in a pipe?

1. The first thing to do is to close the main sluice. Then use a hose to fix it at both ends of the hot and cold water pipes.

2. After everything is ready, it is ready to be pressurized for testing.

3. At the same time, fix one end of the instrument on another water pipe in the same space.

4. When the master is using the instrument, he needs to screw every interface so as not to cause air leakage, so that the measured water pressure will be accurate.

5. Gradually increase the water pressure and test the pressure bearing capacity of the water pipe to see if there is leakage of the water pipe.

6. Check the water pipes everywhere to see if there is water seepage and leakage.

7. The inspector beats the water pressure high, according to popular saying, the water pressure at this time is 8 catties.

8. The inspector touches the water pipe with his hand to see if there is any dripping. The whole process of measuring the water pressure needs 30, if there is no water seepage and leakage, it means that there is no problem with the pipeline.

What are the causes of leaking pipes?

1. Water leakage in the gap under the sink bolt, solution: The leakage in the gap under the sink bolt is caused by the leakage of the faucet caused by the wear of the triangular gasket in the gland. At this time, loosen the screws of the kitchen faucet and remove the tie head, then remove the gland after loosening it, and then take out the triangular sealing gasket on the inside of the gland and replace it with a new one.

2. The sink outlet is leaking, the solution: use pliers to loosen the gland and remove it, take out the axial gasket with a clip, and replace it with a new axial gasket. If there is a leak at the sink outlet, it is usually the shaft gasket in the sink that is worn out and needs to be replaced with a new shaft pad.

3. Leakage at the joint of the sink pipe, solution: The leakage at the joint of the sink pipe may be due to the loosening of the cap nut of the faucet, and it can be solved by re-tightening the cap nut or replacing a new U-shaped gasket.

Water pipe interface leakage is very common in our daily life, how to detect pipeline leakage is the key, there are many reasons for pipeline leakage, we can detect through the above methods, find the problem as soon as possible to solve the problem as soon as possible. I hope what is written above can help you and serve as a reference suggestion for everyone.

Auditory leakage stick: similar to a stethoscope, it is generally placed on the pipeline valve or exposed pipe, and the ear is attached to the earpiece to diagnose whether there is a water leak near the pipeline, and it can also be detected step by step along the direction of the pipeline on the ground to determine the location of the leakage, but the premise is that the pipeline is not buried deeply.

Water leakage detector: mainly used for pavement listening, it is a device that captures the sound of water leakage on the pavement. When the water supply pipeline leaks, the water overflows under pressure to produce a noise, which will propagate along the pipe to both sides, or along the medium to the ground, the water leakage detector is to pick up the sound of water leakage, and convert it into an electrical signal, after corresponding amplification and digital filtering, to judge the accurate location of the leakage point.

This is the method of water leak detection, traditional sonic detection. The location of the water leak can be determined directly.

The reasons why water leaks are more common are as follows:

Aging pipes lead to pipe breakage.

Geological changes, land subsidence and other reasons cause loose pipeline interfaces.

The quality and construction of pipes are not standardized.

The temperature difference of the pipe fluctuates greatly, causing the pipe to be damaged due to uneven heating.

The pipeline is corroded by acid-alkali soil and the medium being transported.

External pressure causes damage to the pipeline.

How to check for leaks in the bathroom.

Bathroom leakage will not only affect the owner's own daily life, if the infiltration is serious, it will also cause the downstairs neighbor's room to leak, so once the bathroom leakage is found, it must be solved in time. There are two main causes of water leakage in the bathroom: one is a leak in the floor, and the other is a leak caused by a ruptured water pipe.

If you want to check the bathroom for water leaks, you can do so in the following ways:

1. Water leakage on the ground.

When the owner himself usually takes a bath or mops the floor, if he finds that it is easy to generate water between the ground and the wall, and there will be infiltration, then it means that the cause of the leakage in the bathroom is the leakage of the floor. At this time, it is necessary to re-do the waterproofing, and the floor tiles need to be re-paved.

2. Water leakage caused by water pipe rupture.

The leakage caused by the rupture of the water pipe specifically includes the leakage caused by the damage of the upper and lower water pipes, floor drains and toilet connections, which can be checked by the following two methods:

1) Leakage of water pipes.

If the toilet has not used water for several days, but there is still a leakage and the leakage has not been reduced, then it is a problem with the water pipe. When the water pipe leaks, there will generally be continuous, uninterrupted, or the phenomenon of increasing leakage, at this time, the owner should close the main valve of the water pipe in time, then the leakage will be reduced immediately.

2) Leakage of sewer pipes.

The owner can open the faucet or pour the water to the floor drain for a test, if it is found that the leakage of the sewer pipe increases, then it means that the pipe is damaged and leaking, and the sewer pipe needs to be replaced at this time.

The above is a detailed introduction to how to check for water leakage in the bathroom, I hope it can help you solve the problem of water leakage in the bathroom. In fact, there are many reasons for water leakage in the bathroom, and the treatment methods for different water leakage causes are also different, so you must first find the cause of the water leakage in the bathroom and then deal with it.

Bathroom leakage may be waterproof is not done, or when sticking bricks did not pay attention to damage the waterproof layer, you can go downstairs to check the leakage location, inject leakage filler in the tile gap and then test the water.

If you can't control the water leakage, you can only remove the tiles and repair them.

First of all, see if the water pipe is leaking.

Then see if there is a problem with the waterproofing.

The easiest way is to check the individual angle valve joints yourself, if there is a leak in the internal tiles, you need to find a professional, who can accurately locate them with an instrument.

In fact, we only need to learn how to find the leakage point to solve this problem, so how can we detect the location of the underground water leakage?

How to check for leaks in underground water mains

1. Use the leakage tool or electronic side leakage instrument to measure the leakage point at the exposed position of the pipeline, see if there is a leakage sound to determine the leakage point, and then narrow the audiometry range after determining the leaking pipeline. If the sound of the listening point is louder, then the leak point is closer, farther and smaller.

2. After determining the location of the pipeline leakage, use electronic instruments to magnify the leakage and find the accurate position.

What to do if the water pipe is leaking

1. Water pipe joint leakage, usually in this case, it is due to the fact that the joint of the water pipe is not directly connected, and there is no sealing treatment to appear such a question, in such a situation, first we have to disconnect the water source, remove the screws of the two joints, and then re-tighten the raw material belt around the thread. If it's because it's aging, you'll need to replace it with a new one.

2. If the sewer pipe leaks, it will be more difficult to deal with, and it may also affect the residents downstairs, so it must be dealt with immediately. Usually the sewer is used in PVC pipes, this can directly cut off the leaking section, and then replace the casing, apply glue twice, and wait for drying.

3. The reason for the leakage of the iron pipeline is that the internal backlog of dirt has caused rust and corrosion of the water pipe for a long time, after finding the leakage point, if the leakage point is relatively small, you can cut off the middle part, and then connect it with a joint, if the leakage area is large and the rust and corrosion are serious, the whole pipe must be replaced.

When checking for water leakage, be sure to turn off the water and power supply, the water will conduct electricity, and it is easy to have the danger of leakage, and then you can simply do a good job of plugging the leakage to prevent the flow to other places. The above is a simple way to check for sewer leakage and encounter water leakage, I hope it can help you.

How to check for leakage in water pipes at home:Turn off all faucets, showers, washing machine faucets, toilets, and toilet faucets, etc.

For the water leakage anomalies or areas that have been discovered, organize personnel with high technical level and rich experience to judge the abnormalities, eliminate abnormal interference, and confirm whether it is an abnormal water leakage. If the water leakage is abnormal, the leakage point will be accurately located.

It is necessary to comprehensively use a variety of methods such as ground sound intensity and audio detection, pipeline sound intensity and pipeline close sound intensity audio detection, and comprehensively analyze the results of valve bolt detection, road surface detection, related detection and other detection methods, and finally confirm the accurate location of the water leakage point.

Cause of water leakage:

The workshops and installations of cities and enterprises are complex and the pipelines are dense. There are all kinds of different integrated pipelines buried underground, such as water supply pipelines, circulating water pipelines, drainage pipelines, oil discharge pipelines, material pipelines, etc., just like the capillaries in the human body, dense and criss-crossed, forming their own networks. Water supply pipelines are buried underground for a long time, which will cause leakage of underground pipelines.

The pipeline is laid for a long time, the service is overdue, the pipeline is aging, the pipeline interface is loosened due to geological changes, ground subsidence and other reasons cause leakage, the quality of the pipe is poor, the leakage is caused by poor construction, and the temperature difference of the medium fluctuates greatly, causing the pipeline to be heated unevenly and causes leakage.

The above content refers to: Encyclopedia - Water Leakage Detection.

Many people should know that water pipe leakage is relatively troublesome to deal with, because it is also a hidden project, so it is still difficult to repair. It's very simple: 1. Turn off all faucets, showers, washing machine faucets, toilets and squatting toilet faucets, etc.

2. Open the water meter valve to the maximum. 3. Wipe the water meter cover and observe carefully for about 15 minutes to see whether the water meter is rotating in the forward direction and whether the water meter degree is increasing. If the meter is not moving and the reading is not increasing, the water system is not leaking.

Otherwise, it is leaking. Professional method: close all faucets and entrance valves, remove a faucet, connect to a special pressure test equipment, reopen the main valve and then close the main valve, and then stop after the pressure test equipment is pressed.

After 2 hours, observe whether the gauge pressure drops, if not, it indicates that there is no leakage in the tap water system, otherwise, there are leakage points, which must be checked one by one. If there is other water leakage, there will generally be the following phenomena: wall mildew, delamination, darkening color, wallpaper falling off, water leakage dampness, putty softness, putty falling off, tile color darkening, etc., in short, it will be clearly revealed.

One is to self-check and close all the valve switches at home, observe whether the water meter turns, and the second is to find a property or plumber master to pressure the water pipe, and keep the pressure of 8 kg for 30 minutes, or find a professional leak detection company.

In the process of suppression, if the pressure value drops seriously, it means that there is a water leakage problem in the water pipe, and if the pressure value is unchanged, there is no water leakage. If there is a leak detector or a leak listening rod, you can use the leak detection instrument to detect the leak according to the direction of the water pipe at home.