Residents of new buildings and old houses ask themselves why the sewer pipes in the apartment are noisy. The first reason is vibration. It is created by water that passes through the pipe. The range of oscillation depends on the flow rate and the material of the pipe. The second reason is external factors. These include pipe wear, its insufficient fastening, and so on. If you do not take measures, then the communications in the house are noisier.
Content
The physical side of the process
The intensity of noise pollution depends on several factors. The first is the degree of proximity of the pipe to the wall. More buzz is where the pipe is located close to the tile or wood. The second factor is the type of mount used. Cheap materials resonate and amplify vibrations, transferring them to surrounding surfaces. Human error is another reason.
The type of pipe is chosen taking into account the age of the building, the flow rate of the water and the degree of wear of the sewer pipes in the house. Over time, a layer of deposits forms on the inside of the pipe. They resonate and amplify noise. The second nuance is the pipe wall thickness. New homes use thin plastic pipes. They will last longer, but there is more noise from them.
Plastic is not always effective
Plastic is the least vibration resistant material. He “makes” sounds for two reasons.
| Cause | Remedy |
| The valve on the system is not installed correctly. | Perform a visual inspection of each valve. An arrow is drawn on them. It indicates the direction of water flow. If the direction of the arrow does not coincide with the actual vector of fluid motion in the system, then the noise will not take long. The user changes the incorrectly installed valve. |
| Use of older valve types | The valve product is outdated in every way. He has a rubber seal on the axle box crane. Its task is to cover the input channel. The axle box vibrates at a slight pressure of the water stream. Fluctuations are transmitted to the mixer and pipes. |
The source of problems with plastic pipes in their kitchen and bathroom is sought by exclusion. The first step is to temporarily remove the mixer. A ball valve and hose are mounted on a cold pipe. The hose is placed in a sink or bath. Water is opened at full capacity. If there is no extraneous noise in the pipeline, then the mixer is the culprit of the problem. Attention is paid to the type of valves installed in it.
"Small blood" to solve the problem will allow the water pressure regulator. It is placed at the beginning of the piping in the house. The second option is the installation of filters. Unfortunately, they will have to be replaced every 3-5 months, depending on the degree of wear of the pipes in the house.
Classic is always in fashion
In multi-storey buildings, cast iron pipes are mounted. Strong, durable, with optimal tensile performance - the strengths of the material. Cast iron has become popular due to the high values of sound insulation. Even at an industrial site, it does not vibrate. In the housing stock, sewage is built on the basis of 200 mm cast-iron pipes. Their laying is justified in areas of large-panel construction.
Cast iron is a material with a high margin of safety. In the case of an increase in the load level above the mark that the designers determined, there will be no problems. The presence of solid cast shaped elements provides cast iron with the necessary margin of safety. The second level of protection is the use of durable consumables.Sockets, tees and other parts have sufficient wear resistance.
Problem solving is never quick
As soon as the residents heard noises from the sewer pipes, they began to search for the cause. You should not rush to conclusions.
| Recommendation | Remedy | Note |
| Fight with infrasound | Mechanical and acoustic resonance occurs in pipes. The thickness of the walls of the plastic pipe, so the vibrations do not have time to break out. There is a so-called "quenching" inside the pipe. | On the one hand, a person does not suffer from the influence of infrasound, but, on the other hand, internal “damping” accelerates pipe wear. The solution will be to replace it with a cast iron. The second option is to replace all tees and crosses with cast-iron ones. |
| Riser damping | Isolation of the riser at the point of passage of the floor. For work, a sleeve is used that contains a filler made of polyurethane foam. Fix the pipeline using damping clamps. If there are none at hand, then old clamps are used. The only caveat - you need to make sure that the degree of wear does not reach a critical level. | The technology is not suitable for new buildings. |
| Partial riser replacement | Lay plastic pipes. It is forbidden to change crosses and transitions. They remain cast iron. Pipes and additional elements are checked for plaque on the inner surface. Prior to "white" is not necessary to clean. It is enough to make a small hole. Further work is done by the solvent. The length of each piece installed by plastic pipes does not exceed 5 m. | Applied in the case when a cast-iron sewer riser is installed. |
In an apartment and a private house, 1-2 methods of solving problems are used. Plumbers with experience say that universal solutions do not exist. Existing techniques are adjusted to suit the situation.
We choose material for sound insulation
As soon as a person has figured out why the pipes are noisy, they begin to fix the problem. One of the methods is the use of rolled materials. The starting point will be the markup. The fabric is marked, based on previously made calculations. The next step is winding the riser. Fixing parts is carried out with adhesive tape. Once the winding is completed, finish fixing is carried out. Adhesive tape wrap the material in the direction from bottom to top with three layers of adhesive tape. Other options are as follows:
- "Shell" - is two parts made of foam. They are fixed around the pipe. They include several grooves for a more tight fit. As in the previous case, after installing the "shell" elements are fixed with adhesive tape in 3 layers.
- Tape - it is wound in several layers on a riser.
- Polyethylene casing - choose the size that "fits" on the riser.
In the bathroom and toilet do not use polyethylene materials if plastic pipes are laid in the house.
Compliance with work technology
Choosing a material that will cope with the buzz, they proceed to cleaning the surface of the pipe. If the pipe is old, then it is cleaned and covered with fresh paint. The second rule - before the start of work, water is shut off. Even a slight vibration will put an “end” to all manipulations. The further procedure is as follows:
- the rolled material is cut into pieces;
- trimming in height is carried out with foamed polyethylene or foam;
- fixing insulation material in an apartment or house is carried out with a maximum level of density;
- fixation points are treated with resin and silicone sealant.
The final touch is the installation of gaskets at the joints.
Soundproofing box
Regardless of what material is used for sound insulation of pipes, installation of the box is carried out. Its task is to dampen noise pollution more strongly. First, markings are made on the floor and walls. All lines are located at a distance of 5-7 cm from the riser. You can’t draw closer. Further actions are as follows:
- establish reinforcing bridges - each located at a distance of 50-55 cm from the other;
- using self-tapping screws establish a metal profile;
- sheets of drywall are attached to the “skeleton" - the material has moisture resistant characteristics;
- leave a small area - there will be a window for inspection of the riser;
- as soon as one side is sheathed, the space inside is filled with mineral wool.
The final touch - “sewing” the remaining surface and finishing work. Before they begin, they verify that all the manipulations made have passed without errors.
The high degree of wear of the system requires radical solutions - pipe replacement. Silent pipes are more expensive than usual, but they can solve the problem once and for all. Their advantages are due to the presence of a 3-layer structure. Durability, resistance to external and internal loads are the strengths of the product.
The only "minus" of plastic pipes is the service life. In old houses, replacement is carried out every 15-20 years.
Problems in the sewage pump
The efforts of the owner of an apartment or a private house will not succeed if the problem is localized elsewhere. Incorrect operation of the sewage pump provokes an increased level of noise load when flushing. The starting point in the question of what needs to be done is the appeal to the operating organization. Her representative will measure the level of noise pollution.
If the inspection inside the apartment does not give positive results, the employee will go to the pumping station. An indirect confirmation of the fact that the problem is located outside the house will be the noise in the pipes in the neighboring apartments. As long as the utility services have not done their part, the pipes are not manipulated in the house.
Noise in the pipes occurs under the influence of vibration load. The more water flows through the pipe, the more actively it “buzzes”. The reasons are internal, for example, a significant level of layering within the system, and external. These include material wear, the wrong type of tees and crosses.
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