Clogging of sewer pipes occurs quite often and everywhere: in everyday life and in production, in an apartment and a country house. Causes of blockages: negligence of the owners who did not install protective grids on the sink and bathtub drains, as a result, large parts of the kitchen waste fall into the sink or toilet sink, until the inner walls of the pipes become greasy. By type of blockage can be divided into mechanical when a foreign object enters the pipe; operational - due to prolonged use, the pipes inside are overgrown with fat, hair, food waste, and mineral sticks to it, when limescale and rust form. For these reasons, the inner diameter of the pipes decreases, resulting in frequent blockages.
Design and principle of operation
The hydrodynamic method consists in machining the inner walls of sewer pipes with water jets under high pressure of 100-200 atmospheres.
Water through the compressor enters the tank into a high-pressure hose, at the end of which there is a nozzle with holes. The hole in the direction of travel breaks up blockages and flushes, and the holes in the back of the nozzle move the entire structure forward according to the principle of jet traction and at the same time clean the pipe walls. As a result, the pipes are cleaned along the entire length of the passage of the machine, and not in any particular place. There are hydraulic installations for domestic and industrial, the principle of operation is the same, the difference is only in size and connection principles.
Households work from an electric motor, but there are designs with a small internal combustion engine such as a motorcycle. Industrial plants are located on the basis of automobiles and are connected from the vehicle engine.
The separation of installations into industrial and domestic ones shows that their use is carried out in different fields - household ones are used on pipes of small diameter for cleaning sewers in residential premises, in summer cottages and other household plots, and industrial ones for work on intra-quarter and city networks. Industrial plants are powerful and independent of the availability of electricity. The advantages of domestic installations are low noise and ease of transportation.
Operating procedure
First, select the nozzle, install on the hose. A correctly selected nozzle affects the quality and speed of work performed. We set the optimal pressure level, in domestic networks it should not exceed 150 atmospheres, otherwise you can damage the pipeline at the joints. Then we put the hose with the nozzle into the drain hole or into the sewer pipe per meter. Turn on the device by holding the hose with your hand.
Do not turn on the device before inserting the nozzle, otherwise you can be injured by water under high pressure. The hose will move inside the pipe. You will feel when the tool reaches the clogging place (water will drastically go away), after passing the clogging place, pull the hose back and make several forward and backward translations in this place for better cleaning of the pipe. Then continue to let the hose go forward until the pipe ends or the hose is completely unwound. Turn off the unit and pull the hose out of the sewer pipe. Spill the pipe with plenty of water.
Types of nozzles
Nozzles or, as they are also called in other words, nozzles, outwardly resemble the tips for a rocket. In the form of distinguish peaked, spherical, with chains. According to their purpose they are divided into:
- punching holes that break through old, “petrified” blockages;
- rotating to remove precipitation along the entire diameter of the pipe;
- bottom for sediment cleaning (sand, silt);
- cutting for grinding foreign objects and plant roots;
- rotary to clean body fat; universal, performing various functions.
Any nozzle has openings of direct and reverse type on its direct casing, into which water is supplied under high pressure.
Advantages and disadvantages
There is only one drawback of the hydrodynamic method of dealing with blockages - this is the high price of both the equipment used and the prices for the work performed by this equipment by professional companies. Cleaning the external sewage system will cost 110 rubles. for one running meter, internal - 100 rubles. But after such a cleaning, you can not worry about sewers for at least 10 years.
Before other cleaning methods, the hydrodynamic method compares favorably with:
- cleans pipes along the entire length, and not only in the place of clogging, in contrast to cleaning with a plunger or cable;
- the walls of the pipes are cleaned completely around the circumference and along the entire length, and not only in the place of blockage;
- Despite the great pressure and pressure work, water does not damage the joints of the pipes, as well as the pipes themselves;
- regardless of the location of the pipes in the horizontal and vertical plane, cleans the sewage system up to 50 meters from the nozzle injection site;
- allows you to break pieces of ice by supplying hot water through a hose;
- owners of private houses in this way can also flush storm drains;
- scheduled cleaning triples the life of sewer pipes;
- high speed of work, cleaning in the apartment will take 1 hour, in a private house 3-4 hours.
If you decide to work on cleaning sewer pipes professionally, you must first decide where you will mainly use the tool. In rooms, on garden plots, sewer pipes have a diameter of 50 to 100 mm, so a portable compact model, portable or on wheels, is suitable. The hose length on such models starts from 15 meters. To clean the main pipelines of sewers or storm systems, where the diameter of the pipes increases to 300 mm and above, a powerful installation on a car chassis is already needed. The autonomy of such installations allows their use in places where there is no electricity.
To work in summer cottages, not large production organizations, you can purchase a car mini-sink “KARCHER ”. The length of the cleaning hoses starts from 15 meters. The price of such an apparatus is 16 thousand rubles and higher. In addition to cleaning sewer pipelines, they can wash the facades of small buildings and structures, and use them for various domestic needs.
Powerful professional installations of hydrodynamic cleaning are produced on the basis of trucks and vans, powered by the engines of these machines. The diameter of the hose and nozzles is within 30-50 mm, the water pressure is 150-200 atmospheres. The price of such installations starts from 90 thousand rubles.
