Before starting finishing work during repairs, it is necessary to dismantle old communications and install water supply and sewage. Modern materials and technologies allow you to fulfill this work yourself, without the involvement of specialists. This article will be stated how to install a plumbing in the apartment.

Methods of pipe gasket

There are two ways of laying pipes:

• external installation;
• hidden gasket (in strokers and boxes).

The hidden gasket looks aesthetically attractive, but requires considerable time of time and labor.

Outdoor installation is performed after finishing. This method of installation requires less time. In addition, open pipes, if necessary, can be easily repaired or replaced. The leakage will be detected on time.

How to carry out a water supply: a choice of scheme

Wiring of water pipes can be performed in one of two ways.

1. The tee method lies in the consistent attachment of all sanitary devices. On one trunk tube in certain places, tees are mounted for branching devices to household devices. This method requires smaller cost, but has a disadvantage - water pressure at extreme points is reduced when other consumers are connected.
2. The collector method is implemented by connecting multiple pipes with consumers to a common distribution device - collector. The method allows you to optimally adjust the pressure throughout the system and perform partial repairs without disabling all consumers. For the installation of the collector water supply system, a larger number of pipes will be required.

The following details must be specified on the layout:

• sizes of the bathroom;
• diameter and length of pipes used during installation;
• accurate places of installation of sanitary devices and their dimensions;
• places of installation of shut-off valves (cranes), filters and counters.

In order not to have problems when installing sanitary accessories and interior items, it is necessary to make a circuit of hidden pipe gasket with indication of landmarks and distances. It is also recommended to take photos.

In order to spend the optimal amount of materials, it is recommended to use the following techniques.

1. The collector should be located between the extreme dots of connecting plumbing devices: this will reduce pipe consumption.
2. To connect multiple consumers to one highway, it is convenient to use tees. Their use also reduces pipe consumption.

The wiring scheme is also necessary in order to correctly calculate the required number of pipes and fittings. Pipes should be purchased with some reserve (10-15%).

What to do a water supply

Modern repair involves the replacement of metal pipes into polypropylene: it allows you to reduce the water supply (the price of pipes from plastic is about twice as much less metallic). The diameter of the used pipes - 22 and 25 mm. In addition to affordable prices, polypropylene tubes have the following advantages.

1. Long service life: Polypropylene is able to maintain its qualities for several decades. This material is resistant to corrosion and to the temperature difference.
2. Pipes do not overgrow inside due to the smooth surface.
3. The connections are reliable and ensure the tightness of the system throughout the entire operation time.
4. Easy installation: to perform work does not require complex devices and special training of a specialist. All items are collected on the principle of the designer.
5. Polypropylene tubes can be used for cold and hot water pipes, as well as for heating. Such versatility helps to reduce the consumption of materials.
6. Various adapters make it possible to compound polypropylene pipes with communications from other materials of different diameters.
7. Light weight simplifies fastening of pipes.

Installation of water supply: Rules and phased process description

Replacing pipes and installation of a new water supply system is performed after turning off the water supply. To limit the trip time, the pipe wiring in the apartment is performed after installing risers and cranes at the exit of them.

Some rules for mounting water pipes in the apartment

Laying the water supply is performed in compliance with the following rules.

1. Shut-off valves (ball valves) is mandatory at the output of the risers, as well as before each plumbing device to ensure it is shutdown during repair or replacement. In addition, the tap is necessary on a pipe for water supply to a washing machine.
2. The diameter of the valve valves must correspond to the diameter of the pipes, using the water supply.
3. Installing the installation will help the installation of cranes with a plastic case: they do not require packs, but simply fall into the system.
4. To clean water from extraneous impurities, the filtering system should be installed on the cold water pipe. Filters are special flasks with interchangeable cartridges.

Tools and fixtures required for installation of water supply

By purchasing the required number of pipes, fittings and other parts, you should take care of the presence of the following tools required for work.

1. Special soldering iron with heating elements adapted to melting the outer layer of parts connected. Melting point reaches 260 degrees. This device can be rented.
2. Teflon nozzles for pipes and fittings of various diameters: They can be bundled with a soldering iron.
3. Scissors for cutting pipes (can be replaced with a metal knife).
4. Roulette and marker - to perform markup in size.
5. Acetone or gasoline - for degreasing the surfaces of the surfaces.
6. The gas key, fum-tape - for a compound with metal pipes (if necessary).
7. Shabers - to remove the foil layer (in the case of the use of reinforced pipes).

For working with disintegration, tarpaulin mittens or cotton gloves are needed, as well as rags - for wiping parts after degreasing.

We select pipes and fittings

To mount the cold water supply, you can use pipes with marking PN10 and PN16: they are thin-walled and operate at a pressure of 1 MPa (nominal). The hot water supply system (up to +80 ° C) is collected from PN20 pipes: they withstand pressure up to 2 MPa. Accordingly, the PN20 brand tube can be used to mount all types of water pipes.
The diameter is selected ½ inches, which corresponds to 21.2 mm: for wiring around the apartment is quite enough. Exceptions are risers: they must be several times a larger diameter.

It is important that pipes and fittings of one manufacturer have been used for connecting pipes and accession of sanitary devices. This is necessary to ensure the tightness and reliability of the system (the melting point of the parts should be the same). The color of the pipe does not matter.

Elements of fastening are acquired at the rate of every 0.5 m tubes - minimum one unit plus additional - to fix the angular connections.
Cold water pipes with outdoor installation should be in sleeve made of foamed polyethylene. For pipes installed in a hidden way, this requirement relates to the pipes of all communications (to compensate for temperature expansion).

Secrets of experienced masters

1. Collect plumbing is recommended after the sewage device so that the communications do not interfere with each other.
2. The billets of individual elements are more convenient to mount on the workbench. After that, large parts are easily connected to a single system.
3. The assembly should be performed in the reverse order: from sanitary pribor - to nodal connections and then to enter.
4. Hot water pipes should be located under cold pipes: it will help to avoid condensate formation.
5. Pipes must be fixed strictly vertically or horizontally, and the compounds are made at an angle of 90 °: this reduces their deformation due to temperature expansion.
6. The location of the last soldering is chosen in such a way that the pipe can be left to the side at least 80 mm.

Important: When laying a water supply, through a hole in the wall, protect the pipe from possible garbage in it with a plastic bag.

Soldering polypropylene pipes

The compound of polypropylene pipes and fittings with a soldering iron is performed as follows.

1. It is selected suitable for the size of the nozzle and joins the soldier.
2. After turning on the soldering iron to the network, the melting temperature specified by the manufacturer is selected (most often - 260 ° C). After reaching the installed temperature on the willingness of the soldering, the light indicator or developing the thermostat.
3. Cut pipes are harvested with the fact that approximately 15 mm should be included in the fittings. Consequently, the total reserve (for both sides) of the length should be about 30 mm.
4. Burnds of pipes (in the case of cutting with knife) must be eliminated, soldering places - cleaned and degreased.
5. By connecting temporarily (without soldering) pipe and fitting until it stops, the marker on the pipe mark the boundary of their entry into each other.
6. A fitting is put on the nozzle, and on the other hand the pipe is inserted. Both parts are moving up to the stop, after which the time is made (see Table). It should not overheat the details.
7. The fitting and the pipe is removed from the nozzle without skewing and crossing. The connection of parts is accomplished coaxially and for a short period of time. The edge of the fitting must reach the marker on the pipe.
8. After about 5 seconds, after holding the parts connected, it is possible to further install other elements of the water supply. Fresh compound must cool for 3 minutes.
9. Ready plumbing fixed with clips to the wall.

After the installation is completed, you must perform a trial start to detect leaks. Mounting marriage is eliminated after turning off the water supply at entering.

Installation of accounting devices

Water consumption counters are installed immediately after ball valves on entering. The mounting kit can be purchased in the assembled state: it should include a coarse filter, the check valve and the counter itself.

Assembly sequence:

• cutting crane;
• filter;
• counter;
• check valve.

The installation is performed so that the arrow on the instrument passport (the upper plate with a countable mechanism, located under the protective transparent cap) coincided with the direction of water movement. The assembly with the pipe is connected using the MRN adapter.

Important: To account for hot and cold water, different types of meters are used, differing (except marking) with a plastic rim. Red bezel at a hot water counter, blue - cold.

After installation, counters are registered in the water supply organization. Attention should be paid to the presence of a seal of state calibration.

Pumps on the plumbing in the apartment: how to install

In some cases, it is necessary to establish a pressure increase pump. For the operation of the washing machine or the gas column, it is important that the water pressure at the input is not lower than a certain value. But in the event that the water does not reach the consumer, you should seek help in an organization serving ingenious engineering communications. If everything is left unchanged - it is not necessary to do without auxiliary equipment.
Pressure enhancement pump should be installed in front of a household device demanding to this parameter. It should be remembered that during the pumping of the pump, the water pressure is reduced from the neighbors on the riser. In this regard, the use of the pump is allowed only for short time.

In conclusion, we suggest familiarizing yourself with the video of the installation of water pipes in the bathroom.