How to change pipes yourself

Several water cubes pass through the pipeline systems every day. Pipes in the bathroom and toilet are unusable and in need of replacement. Change the pipes in the apartment with their own hands is not difficult. Any person who knows how to twist a nut with a wrench can do it.

In deciding to replace the internal wiring of pipes throughout the apartment, pay attention to the condition of the risers. It may be necessary not only to replace the pipes in the toilet and bathroom, but there is a need to change the riser.

Selection of pipes for the replacement of internal wiring in the apartment

1. Steel pipes were previously widely used for the installation of internal wiring. The steel pipe withstands high temperatures and pressure. But this layout has a number of drawbacks. The steel is susceptible to corrosion, condensate falls out on the outer surface, and the inner sides rust and lime. There are difficulties when installing metal pipes. You will need skills in tapping or the ability to make welded hermetic seams. An important drawback of steel pipes is electrical conductivity.
2. Metal-plastic pipes are much lighter than metal pipes and easier to assemble. They are easy to bend by hand with a special steel spring. This is important for laying the internal wiring of pipes in the bathroom or toilet in hard-to-reach places. Metal-plastic pipes have high throughput, do not lime and do not rust. For installation, fittings are required, which are assembled with a wrench. Pipes easily withstand hydraulic shock and are divided into two types: for hot and cold water. Warranty period from 35 years.
3. Plastic water pipes have all of the above positive qualities. For pipe installation, a special adhesive or soldering iron and fittings are required. Such a system is strong, has a low weight and is not subject to corrosion. It can be safely walled up or hidden under the floor. Plastic pipes differ in types:

• polyethylene pipes - connection at the joints is made by soldering iron. For pipes for hot water, pipes made of cross-linked polyethylene are purchased;
• PVC pipes are used not only for internal water distribution, but also for heating systems. The connection of pipes with threaded fittings is carried out with the help of special glue;
• polypropylene pipes are most often used to replace pipes in an apartment. Low price and universal characteristics for cold and hot water make this type of pipe the most in demand. The connection at the joints is carried out by soldering.

Tools for replacement of tubing in bathroom and toilet

• Turbo-grinding machine( Bulgarian) with cutting disc for metal is useful for dismantling old metal pipes.
• Tubular electric soldering iron or special adhesive for plastic pipes, depending on the method of installation.
• Cutter for plastic pipes and reamer( for pipes made of metal-plastic).
• Adjustable pipe wrenches number 1 and number 2, Swedish key, set of locks keys from 18 to 36 mm.
• Drill with impact mechanism and drills with titanium nozzle.

For pipes made of metal, you will need a threading fork and a vice.

Materials required for operation

• For internal wiring, ½ and ¾ inch steel pipes or 16 to 20 mm plastic pipes are used.
• Fittings in the required quantity( end, corner and intermediate tees).
• Cut-off valves for each wiring outlet. Linen tow( rewind).
• Pipe mounts - 1 pc. Per 0.5 m.
• Technical petroleum jelly for threaded connections.

Dismantling of the old pipeline in the bathroom and toilet

First of all, the water pressure in the riser is blocked. The shut-off valve, as a rule, is located in the basement. Ensure that the shut-off valve reliably holds water and is not in the internal wiring system.

1. All connected objects are disconnected: bathroom faucets, toilet bowl, wash basin, etc. Pipe key number 2 clamps the pipe being dismantled. The key is taken in the left hand, and the clamp cheeks of the key are directed to the wall. The second key number 1 is taken by the coupling, the cheeks are directed in the opposite direction. While holding the pipe with a second key with effort, but without jerking, unscrew the coupling.
2. In those places where the joints are completely overgrown or rotten, and they can not be untwisted, the pipes are cut by a turbine with a cutting disc for metal. When working, use caution and protective equipment. Especially protect your eyes, do not work without protective glasses.

If the wiring is done without replacing the common riser, a new thread is cut into the outlets, and stopcocks are installed. Closing the shut-off valves you can open the water in the riser and continue to install the internal wiring.

The order of installation of the internal water distribution of the

The walls are prepared and the marking of the future water supply route is made. For flush-mounted wiring, the grooves are grooved in the walls, and holes for dowels are drilled at the mounting points for the outside.

1. The installation of the internal wiring pipes begins with the connection of the coarse filter after the shut-off valve on the hot and cold water inlet. On the filter housing there is an arrow indicating the direction of water movement. Take a pinch of linen pakli, comb the fingers with a fine rub and twist into a thin string about 1 mm thick.
2. From the thread's edge clockwise, the spade is tightly wound up to the base of the outlet. On the plaque, a little technical petrolatum is applied and smeared at the beginning of the threaded joint. The filter connects to the outlet and twists. Initially, manually, and then tightened with a key. For a quality connection, you need to make at least 4.5 - 5.5 full revolutions of the body parts.
3. After the coarse filter, a water meter and a non-return valve are installed. All parts are equipped with water flow direction arrows, and the meter is attached with the help of union nuts( american) with rubber gaskets. When installing the counter for the input of hot water, the gaskets are changed to paronit. The counter is installed immediately after entering in an accessible location. The direction and position of the dial does not matter.
4. A plastic pipe is installed from the meter to the nearest sanitary facility. A cutter for plastic pipes cuts the workpiece to fit. On the one hand, the end fitting is attached, and on the other hand the straight-through tee with threaded outlet. The connection is made using a soldering iron or glue, depending on the type of plastic pipes. For sale there are passage and end bends with an angle of 45 ° and 90 °.
5. For every sanitary facility, a cut-off ball valve is installed at the connection point. Thus, in the event of a malfunction for repair, it will not be necessary to cover the water in the entire apartment, it is sufficient to disable only one object. From the outlet of the shut-off valve are installed connecting hoses for mixers, toilet bowl, etc.

Checking internal wiring after changing pipes

Smoothly, starting with a weak head, water is fed into the internal wiring system. After waiting 10 minutes, check all the joints and the place of the threaded connections. When a leak is detected, it is eliminated. In screwed connections, it is sufficient to tighten or repackage the assembly. Leaks on glued or soldered joints are eliminated by complete replacement of the assembly.

Video replacement pipes