Replacing pipes in an apartment
To change pipes in city apartments is necessary quite often. It is important to know when to do it, how exactly and what is best not to do at all. Let Αποφράξεις Αντωνίου to try to explain this issue to us.
Assessment of the state of communications
Determining the true state of communications in an apartment can not be limited to their visual inspection and comparison of the current state with the project. Make sure you ask anyone who may have information about problems (including neighbors) and consult your service provider. Professionals always write in their conclusions whether the distribution of water supply in a new building or in an old house is in accordance with the provisions of the joint venture 30.13330.2012 “Domestic water supply and sewerage services”. It is necessary to check not only the pipes themselves and the sanitary equipment connected to them, but also the water meters.
Sometimes the water supply of a microcircuit or individual houses is organized with the help not of a central water supply system, but of a well shell of different depths. This source should also be monitored periodically with the participation of professional artists.
During the test, the following standards are defined and verified:
- actual location and dimensions of the individual sections.
- drilling intervals.
- the presence of deformations in the cement,
- filter quality.
To perform such a survey, assist specialized measuring and control devices. More related to people problems with the operation of the toilet or a closed heating system of the apartment. Many homes still have many old pipes installed 25-30 years ago and more. During this time, any metallic grade loses some of its properties, the internal channels are overburdened with sediment, fistula, corrosion and even leaks.
With all these problems, a repair must be performed, but it can be different in scope, respectively, and in terms of funds spent.
Reasons for replacement
With all the care of designers and installers of pipe communications, they have a sad tendency to fail. It sometimes happens that it is impossible to restore the productive capacity of a water supply or sewerage system without drastically changing its components. This is especially true of up-and-coming homes during the mass construction and a little earlier. Subsequently, mainly cast iron and zinc coated steel were used for the production of pipes. Under the action of various substances dissolved in water, suspended solids and due to the corrosion process, leaks inevitably occur over time.
Prolonged use of metal water pipes is bad because it can not clog and leak some water. A more serious threat is a breakthrough in communications with the apartment flood and all the apartments below. The attitude of the hot contour is affected very often, because it faces an additional thermal effect. The need to replace the water supply system arises if the expiration date has expired or the apartment has been repaired. According to standards generally accepted in the construction environment, metal supplies should operate for an average of 25 years.
For about 15 more years their use is allowed only if immediate replacement is extremely difficult. However, the use of pipes, which were installed more than 40 years ago, is impossible in principle. Discovery and flooding are expected at any time. As for the major repairs in the apartment, the replacement of the elevators is justified by the fact that they are mounted with decorative materials, covered with furniture and accessories. If you do not replace them immediately, without waiting for the warranty period to expire, you will have to break the created structures and re-create the decoration.
It is recommended to change the vertical axis from the lower entry point to the apartment to the ceiling. If you limit the removal of blockages or rust to a small area by changing it individually, you will soon experience additional problems during operation. Experts advise to change the pipe, even in the most “heavy” points of overlap – there is that wear that happens quickly and violently. It does not matter where the replacement takes place, in the kitchen, in the bathroom or in the combined bathroom – you should definitely coordinate the work with the organization that operates the house and turn off everything hero vertical.
It is recommended to undertake the replacement of pipes from modern materials that will last much longer than obsolete cast iron or galvanized constructions.
Selection of materials
But there may be another difficulty – there are many options on the market for their materials and designs. Manufacturers and sellers, of course, claim that it is their product to get the best, that they will do the job reliably. The choice is further complicated by the fact that under the common name plastic pipes are aware of the most different types of polymers. Polyvinyl chloride elements that have been proven in other industries have become quite widespread. But for pipes, the same substance is not used as for windows or doors; but it is necessarily modified by the introduction of special additives.
Because the recipe, which adheres to a particular manufacturer, they pay special attention. Hard PVC can not have flexibility during installation and subsequent operation.
But it also has obvious advantages:
- increased stability with high heat.
- excellent impact resistance.
- wall strength;
- eliminated the destruction of the occurrence of colds.
If you use such pipes for drainage, they will cope very well, because they are designed for industrial class resistance to saturated fat solutions in water, to organic and inorganic acids. In a city apartment, unlike a private house, there is no space for non-pressure pipes. Many experts believe that it is better to choose polypropylene pipes, which have managed to be installed on the best side in recent decades.
Their advantages are:
- suitability for hot water circuit (high quality polypropylene becomes brittle only at 140 degrees);
- much higher than the best grades of steel and cast iron, corrosion resistance (can be installed even in areas prone to flooding).
- zero risk of spreading stray currents or contact voltage through pipes.
- increased wear resistance even with relatively dirty water.
The latter situation does not mean that you can completely ignore the need to install filters. After all, even if the pipe can withstand pollution, a hydraulic component can be affected. “And there are spots in the sun,” and polypropylene has its deadly weakness – they are not friends with the Sun itself. The rays of daylight will quickly damage the material, they will lose their strength. It is important to remember and be careful during installation, using such piping, accidental hammer or strong pressure can damage the fragile contour.
Another popular choice now is polyethylene. Other polymeric materials can not be compared with it with flexibility. Polyethylene pipes are lightweight and can be designed without unnecessary problems even when other designs fail. The classic polyethylene pipe is designed only to pass cold water. To post a hot liquid, you need to get a special kind of this material or even consider other options. Low pressure polyethylene is much better than what is achieved at high pressure because it is mechanically stronger.
Complete a review of synthetic materials suitable for metal pipes. This is a whole “cake” that contains many layers. The water itself washes the wall of the food category made of polyethylene. A layer of aluminum foil is placed on the back, which gives rigidity to the assembly. The outer shell is also made of polyethylene, but already has increased density and stiffness.
So that the layers do not move chaotically in different directions, they are bound to the production with a special composition adhesive. In terms of corrosion resistance and cold season resistance, metal pipe is a worthwhile alternative to simple polymers. In addition, it can bend in an arbitrary direction, which is very useful for installing pipes in narrow, hard-to-reach places or, if necessary, creates a fancy configuration. Metal-plastic transports heat up to 95 degrees, while the pressure inside the pipe can reach 10 atm. If there is a flow of fluid through it, it is heated to 25 degrees, the allowable pressure is also 25 atm.
No matter how hard the creators of synthetic materials try to create universal types of them, traditional metal constructions occupy their niche firmly anyway. Gradually the popularity of copper pipes that are made seamlessly increases. Without polymer, without quality steel, it provides the necessary reliability. If you take two the pipes – one copper, the other – steel, with an internal cross-section of 1.2 cm and a wall size of 0.1 cm, then at a flow temperature of 250 degrees the steel will withstand a pressure of 100 bar and the copper will remain stable even at 600 degrees and 500 bar. Another important advantage is that as the temperature increases, the copper pipe only increases the mechanical strength and at the same time the plastic properties.
Therefore, experienced experts know that they will survive three freezes and thawing without unnecessary consequences. Such an extreme test will not even cause the loss of consumer characteristics. Innovations in copper pipelines, with comparable destructive power, always cover the minimum distance. If a steel pipe bursts, the slit spreads quickly, and sometimes even has time to cover the entire length of the pipe. The disadvantage of copper can be considered that it does not prepare the thread and is assembled only with the use of components of the combined shape.
It will not be possible to use the copper pipeline where:
- the fluid flow moves faster than 2 m / s.
- Water contains solid inclusions that can affect the walls.
- the stiffness of the flowing liquid is less than 1.42 or greater than 3.42 mg per liter, the acid-base balance does not fit in the aisle from 6 to 9.
Even cast iron pipes have their advantages, especially since they are not produced by the usual brands of cast iron. These are very fragile and will have extremely small pores. In plumbing and wastewater, an alloy is used, modified by the introduction of magnesium and further annealing at high temperatures, claim Αποφράξεις – Αντωνίου.