How to assemble and install a siphon for a sink in a bathroom or under a sink in a kitchen

Every apartment has at least one washbasin - an object without which no bathroom can be equipped. However, in order for the facility to function properly, it must be equipped properly.

One of the integral components of the structure of a washbasin is a siphon - an object that is entrusted with the function of preventing overflow of water, as well as eliminating unpleasant odors. Consider further the features of choosing a siphon, as well as the basic rules for its installation.

Device

First of all, it should be noted that the siphon is a rather simple design, which in its appearance resembles a series of pipes connected by flasks. In some cases, this drain element is presented as a single solid pipe.

Speaking about the design features of the siphon under the bathroom sink, it should be noted that it has some standards that have been observed for a long time. In accordance with them, the design of the siphon is:

• grid;
• rubber gaskets;
• connection of a branch pipe or protective grill;
• branch pipe;
• sewerage taps;
• connecting nuts;
• body.

Let's consider further the features of each component separately.

Speaking about the mesh (protective grid), it should be noted that it is a specific element that has 5-6 holes 1 cm in diameter. It is installed directly into the washbasin. This element is visible to the naked eye - it is located in the place where water flows. The base of this part can be made of both plastic and metal.

As for the rubber pad, it is designed to prevent water from leaking out of the washbasin onto the floor. Practice shows that the color of such gaskets directly depends on the price and quality of the entire siphon: in expensive products they are presented in white, and in cheap ones - in black.

As for the branch pipe, which is part of the siphon in the sink in the bathroom, it serves to connect to the pipe other devices supplied from other plumbing elements installed in the neighborhood. Between the spigot and the protective grill, there is a connection in the form of a screw with a diameter of 8 mm. Also, in addition to the branch pipe, other branches can be installed, presented in a rigid or corrugated form. Additional elements of the siphon can also be connecting nuts made of the same material as the base of the structure. In most of the recommendations of experts, it is noted that the nuts of a high-quality design must necessarily be made of stainless steel, since in case of damage they will have to change the entire structure to a new one.

In devices of this type, a variety of decorative linings are also installed, as well as reservoirs in which waste that falls into the sink accumulates.

As for the base of the siphon, it is the entire body of the product. We will talk about what they are later.

How to install a siphon under the sink with your own hands

Installing a sink drain is not so difficult if you know the sequence of actions:

1. Rubber gaskets are inserted into the grooves of the device body, and then the parts are twisted. At the same time, it is not recommended to lubricate them all with sealant, since to clean the siphon, you will have to periodically unscrew its lower part.
2. A coupling nut and a cone-shaped gasket are put on the branch pipe.
3. Then the branch pipe is inserted into the groove of the flask and secured with a nut by hand.It should not be allowed that it rests against the walls of the case, since in this case the siphon simply will not work.
4. A corrugated or rigid branch is connected to the branch pipe, a cone-shaped gasket is put on the pipe. Everything is fastened with a coupling nut.
5. The protective grill is placed in the drain hole, on the other side a branch pipe with a rubber gasket is attached, everything is connected with a clamping screw.

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Carefully check for a complete set of parts such as nuts and gaskets prior to installation. Sometimes these elements have to be replaced due to minor scrap or unsuitable material.

When the siphon is installed, check the quality of its installation. To do this, the water pressure is turned on, and a napkin is placed under the device so that you can see drops when leaking. If the liquid passes into the sewer without any problems, then the device has been installed correctly.

Corrugated siphons

Practice shows that corrugated siphons are most often found on the Russian market. Structures of this type are made of plastic with a folded structure. Due to the peculiarities of the structure, the structure has the ability to fold and unfold perfectly, shrinking into a tube of the required length. An additional advantage of this type of structure is that it can be bent in any way. This allows you to place it anywhere. Practice shows that a siphon with a plastic corrugation is best suited for a sink, since it squeezes into any place without problems and is quite simply connected to the drain.

The design of the corrugated siphon is distinguished by its simplicity: it contains a base, as well as a number of connecting nodes. The main advantage of this structure is that there are almost no leaks in this type of pipe.

However, practice shows that the design of a sink siphon with a plastic corrugation has some negative features, which are manifested primarily in a low degree of resistance to sudden temperature changes. Also, when using such a structure, it is necessary to take into account the fact that when fat enters it, the pipe becomes clogged, to eliminate which it will be necessary to dismantle the entire structure, clean it and install it back, or replace it with a new one.

Corrugated device

Until recently, such a design was practically the only one among these devices. It can be said that she is the ancestor of the technology for draining liquid into the sewer.

The corrugated type is a curved corrugated pipe. Usually it is made of materials that are sufficiently soft, so it is easily subject to changes in shape.

How does a corrugated siphon work? Its principle of operation is also based on the physical laws of the action of liquid and atmospheric pressure.

Corrugated siphon

A corrugated device consists of several parts:

• clamp made of plastic. Designed to fix the device;
• corrugated pipe undergoing changes in its shape. To fix the device, the ends of the pipe have threaded connections;
• unit for draining the liquid. It must be installed directly into the sink.

The corrugated type is the easiest to install. To install it, no special knowledge and skills are required. To install the device yourself, you need to do the following:

1. a unit for waste water is connected to the drain hole of the sink. To fix it, it is necessary to use gaskets (usually they are part of the structure of a corrugated device);
2. the end of the pipeline is fixed and secured in a tee that goes into the sewer;
3. the other end of the pipe should be fixed and fixed in the drain pipe;
4. installation and regulation of the required bend of the siphon. It is a correctly installed bend that helps to create an obstacle to the penetration of extraneous odors and gases into the living space from the sewer.

In order for the device to function as efficiently as possible, it is recommended to bend as much as possible. If the bend is small, the required pressure will not be created, and foreign odors will penetrate into the room.

Pipe siphons

Experts in the field of construction often note that a tubular structure, which is presented in a finished version and does not lend itself to any deformation, will be an excellent option for a siphon for a sink in a bathroom.

Pipe siphons are presented in the form of a curved tube, which is made of metal or high quality plastic. It should be noted that in such a design, there is always a bend in which the water seal is formed, however, as a rule, it has a small size and shallow depth.

Pipe siphons, according to the people who operate them, have a number of disadvantages, which manifest themselves in the form of frequent formation of an unpleasant odor emanating from the structure, as well as constant blockage of the passage, as a result of which it is necessary to constantly disassemble the riser and clean it.

Siphons are not recommended for equipping kitchen sinks, as they are most likely to get food debris, as a result of which they will constantly need to be cleaned. The big disadvantage of such structures is that they are large, because of which, as a rule, nothing can fit under the sink except for a siphon.

Pipe siphons are the ideal design for double sinks. Some of them have double safety nets.

Types of siphons

By design, these products are divided into the following types:

1. Bottle... The most common type. It is appreciated for its ease of cleaning - it is enough to substitute a bucket, then unscrew the bottom cover and the outlet pipe. Assembly instructions for bottle siphon.

   
   Bottle siphon

2. Pipe... They save space, but require a more accurate alignment of the drainage outlet and the drain hole.

   
   Pipe siphon

3. Corrugated... The cheapest and easiest to install. Disadvantage - they quickly become clogged with deposits.

   
   Corrugated siphon

4. Flat... They can be installed in the most inaccessible places, have a fairly simple design, but for cleaning they must be completely dismantled.

   
   Flat siphon

Siphons of the first and second types are used to connect any plumbing equipment to the sewage system. It is better not to install the corrugation for the sink, since fatty deposits washed off from the dishes will be very difficult to clean. Flat siphons are ideal when space is tight, such as fitting a bathtub shower tray.

Also, these products can be supplied:

• additional taps designed to connect several devices to the siphon at the same time;
• an overflow system that acts as an insurance against overfilling the reservoir of a plumbing fixture, such as a bathtub or sink.

Additional elements of the siphon

Bottle siphons

Among the popular designs are bottle siphons, which received this name due to their unique appearance - the middle part of the tube has a protrusion presented in the form of a bottle.

Such products are characterized by certain features of installation and operation. So, the installation of these structures is best trusted by professionals in the field of plumbing, but their subsequent disassembly and cleaning can be done independently - such processes are not difficult.

Experts often note that bottle siphons have one simple feature - you can easily connect the drain of any other device to them, for example, a washing machine or dishwasher. It should be noted that in this situation, the connection is made directly, without the use of unnecessary drainage taps.

Among the positive qualities of the structure under consideration, it is also worth mentioning that it has a special element - a drain, in which all the debris that falls into the pipe is collected. It should be noted that the existing blockages can be obtained without much difficulty by removing only the lower part of the structure, without completely dismantling the riser.

Due to all the features and advantages of the design, it is quite often used to equip double plumbing fixtures, as well as to equip sinks with an overflow.

The device and principle of operation of the siphon

Regardless of the device of the siphon, it always operates according to the same principle, therefore, the explanation of the principle of operation is universal. A certain layer of water accumulates in its curved channel, which acts as a water seal.

Odor trap in the pipe siphon

The gases emitted during the discharge of effluents cannot overcome it, which means they do not penetrate into the living quarters. This water plug does not impede draining at all. Some plumbing fixtures are equipped with their own water seal system, all others must be installed separately.

The principle of the bottle siphon (cutaway)

With intensive draining, water can escape from the siphon. In this case, the hood, which is equipped in most apartment buildings and private houses, helps to avoid excessive accumulation of gases.

Dry siphons

One of the latest innovations in the field of plumbing is the dry siphon. This type of construction became very popular immediately after its inception, due to its ability to prevent stagnation of water in the tube, so that there is no unpleasant odor.

Dry siphons are quite often used in summer cottages, as well as in rooms where the water supply is strictly limited and there are certain heating problems.

The peculiarity of the action of the siphon of the type under consideration is that when water enters it, the membrane made of rubber begins to open due to the movement of the flow. After stopping the water supply, it contracts, as a result of which the flow hole is simply closed.

Step-by-step guide for assembling and installing a siphon ↑

Dismantling the old device ↑

Preparing to install a sink siphon begins with dismantling the old device. The used device is unwound and carefully removed. The inner surface of the sewer pipe is cleaned. The work is carried out without undue fanaticism, since the special rubber of the cuff is designed to fit into rough material. If the sewer pipeline is made of plastic, there should be no problems. It will be somewhat more difficult to work with cast iron pipes. In this case, the branch pipe will be sealed with cement and will have to be chipped off. Work should be done very carefully. Cast iron is quite fragile, and its debris can get stuck in the pipe and become a source of permanent blockages.

The sewer bell, prepared for further work, must be temporarily plugged with an old rag or a plug of a suitable size. The new device is removed from the packaging and checked for thread quality. There should be no chips or sharp burrs on it. The absence of damage and defects is also checked. Then the parts of the device are laid out in the order of their subsequent connection. This will make it easier to navigate. It remains to prepare the necessary tools and materials.

The diagram shows the structure of the siphon and the approximate order of assembly of its parts

Installation of a new siphon under the washbasin ↑

Let's start assembling the structure.Detailed instructions are usually found on the packaging of the device. It is advisable to perform it as accurately as possible. In general, the installation procedure is as follows:

• Insert the gasket into the groove of the sump and twist it from the bottom of the siphon.
• We put the following parts on the branch pipe one by one: a plastic tightening nut and a tapered gasket. The latter must be located a few centimeters from the edge of the pipe.
• The pipe prepared in this way is inserted into the body of the flask. Tighten the nut carefully. It is not recommended to use the tool, otherwise you can damage the system.
• We put the coupling nut with the gasket on the outlet pipe and screw it to the siphon. We put the tapered gasket on the opposite end of the pipe and insert it into the sewer outlet.
• We put a gasket in the drain hole of the sink, on top of it - a metal mesh. We insert a long metal screw, after which we carefully screw on the pipe. We make sure that there are no distortions.
• We check that the pipe does not touch the bottom of the sump, otherwise water will not be able to pass through it.
• We carry out a trial run of water. Gradually open the tap to the maximum and carefully inspect the system for leaks. If they appear, we treat the cracks with a sealant and re-test the structure.

A trial run of water is an important stage of installation. It identifies all errors made during the installation

Features of installation of devices with a transition cuff ↑

In the event that the pipe does not match the diameter of the drain hole, a transition collar is used. This is a perfectly acceptable option, however, it must be borne in mind that such a connection is less reliable than a design with a pipe of the design diameter. The procedure for installing a siphon with a transition collar is the same as described above. The only difference is that the tapered gasket for the branch pipe will have to be replaced with a rubber sleeve. This method can be used when connecting a 32 mm pipe to a 40 mm siphon.

How to assemble a corrugated sink siphon ↑

This is the simplest system. The number of parts in it is minimal. The main element of the device is a corrugated pipe, in which a water seal is created. It also plays the role of drain pipes. The installation process consists in connecting one end of the part to the sink, and the other to the sewer socket. After that, the bend of the required depth is necessarily performed and fixed with a plastic clamp. The device is ready for use.

The corrugated siphon is the simplest, but very effective device. The main advantage of the system is its mobility.

Recommendations on how to change the siphon under the sink are simple and understandable even for a novice home craftsman. It is necessary to decide on the type of construction, choose it correctly and correctly install it, guided by the instructions attached to the device. Special skills are not required here, only patience, accuracy and strict implementation of all points of the guide. If it seems too complicated, you can always invite specialists who will competently and quickly install a structure of any complexity.

Concealed and flat siphons

Considering the varieties of siphons, you should definitely pay attention to such a variety of designs as flat. A siphon for a sink of this type is used in a situation where, for some reason, it is impossible to install a corrugated or bottle siphon due to their size. Such structures are created mainly from plastic. Due to the small size of the flat washbasin siphons, they are most often used in small bathrooms.

The main advantage of hidden siphons is that such structures are not visible to others. As practice shows, most often they are placed inside special boxes, niches and walls.As a rule, such niches and boxes are mounted next to the sinks.

What to consider when buying a siphon ↑

Experienced plumbers know that the connection dimensions of the sewer pipes are different. There are three variations - 50, 40 and 32 mm. When replacing the siphon, measure the diameter of the spout of the old device and select a new one with the same characteristics. If this is not possible for some reason, a transition cuff will need to be installed. The device can be purchased at any plumbing store. In addition, you can find siphons on sale that fit any size of the sewer pipe. They are equipped with a special stepped spout, each step of which corresponds to a specific size.

Before installing such devices, the excess part is cut off. In this case, you will have to purchase the bottom seal separately. It is better to do this when buying a siphon, so it will be easier to choose the right model and at the same time check how well it "sits" on the spout, its strength and elasticity. Experts advise to carefully examine the spout. If there are large burrs on it, which, moreover, interfere with the normal seating of the sealing collar, it is better to refuse such a product. Most likely, it is made of low-grade plastic and will not last long.

Before dismantling the old device, you should substitute a bucket for dirty water under it and stock up on rags

What are siphons made of?

Plumbing experts strongly recommend paying attention to the material from which the structure is made - this is the primary indicator of its quality. Let's consider further the main features of each material.

Modern plumbing stores are ready to offer siphons from the following materials:

• chromium;
• brass;
• copper;
• bronze;
• plastic.

Practice shows that chrome-plated siphons are the most popular - they are the most durable and retain their qualities for a long period. Moreover, many people are captivated by the beauty of the appearance of such products. In the interior, this element is amazingly combined with towel dryers, pipes and other essential elements of the kitchen and bathroom made of metal. Choosing a chrome, copper or brass structure, it is worth remembering that it needs proper care, otherwise the siphon will quickly lose its beauty in appearance.

As for plastic sink siphons, they are less durable than metal structures, but, despite this, they are in rather high demand due to the presence of a lot of positive qualities characteristic of them.

It is worth noting that plastic siphons are lightweight and inexpensive. In addition, such structures are quite easily disassembled and cleaned, and they can also be easily installed independently. The advantage of siphons made of such a material is that limescale does not form on their inside, which now and then appears on metal products.

A significant disadvantage of plastic siphons is that they are subject to mechanical stress from the outside. That is why they need to be covered with ceramic elements or special boxes.

Manufacturing materials

Modern sink siphons with overflow for kitchens are made mainly of PVC, chrome-plated brass or propylene. The most expensive are metal products. However, due to the relatively high price, their purchase looks really justified only from the point of view of prestige and aesthetics of appearance. From the point of view of practicality, durability and ease of use, plastic siphons for kitchen sinks with an overflow are not inferior to the same metal ones.

A construction made of PVC is the cheapest option. Even with daily use, such a siphon will last at least 7-10 years.

As for propylene products, they are 15-20% more expensive than their PVC counterparts. With a high-quality installation, such a sink siphon in the kitchen will last for more than a decade. Unlike chrome-plated structures, cleaning of chemically resistant, durable propylene can be done with a metal cable or a hook.

About the dimensions of the sink siphons

Speaking about the sizes of the structures under consideration, it is worth noting that they differ in their variety. In the event that it is not possible to calculate the exact length of the tube, then it is worth giving preference to those structures that can be deformed based on personal preferences - corrugated.

Speaking about the sizes of siphons for dry-type sinks, it should be noted that at present their list is very limited - manufacturers produce such designs of two types: 32 and 40 mm. When choosing other types of structures, it is necessary to make the most accurate measurements. So, for example, in fact, it is necessary to clearly determine the size of the chrome-plated siphon for the sink. After all, such a material does not lend itself to deformation.

How to choose the right size for a sink siphon? In this case, you should pay attention to what capacity of the structure is required for a particular situation. It is also necessary to take into account the total number of sources connected to it, as well as the degree of the supplied water pressure. In the event that, during the operation of the siphon, a powerful flow of water from several sources passes through it, it is worth giving preference to those structures that have a large cross section.

Otherwise, if the size of the siphon for the sink in the bathroom or in the kitchen turns out to be small, then you may encounter an unpleasant phenomenon in the form of a flood. It is also worth paying attention to the fact that when planning an increased load on the device, it is better to give preference not to plastic or flat elements, but to metal ones. A small siphon for a sink can only be suitable if one and rather weak stream of water gets into it.

Additional functional elements

Siphons installed under the sink can be equipped with the following accessories:

• Drain and overflow. If the washbasin is equipped with a second upper drain, a siphon is installed under it, equipped with an additional pipe (overflow). This will avoid accidental flooding.
• Bottom valve. A mechanism that is installed in the drain hole instead of the grate and acts as a plug.

• Additional side connection for connecting household appliances (washing machine or dishwasher).
• Duplicate bend. It has a special siphon designed for sinks with two bowls. We select the drain for them with the required number of taps. It is such a device that is shown in the photo below.

Recommendations for choosing a siphon

Plumbing installation and maintenance professionals often give a ton of advice on choosing the right sink siphons. What should you pay attention to when choosing a device? Let's look at some of the highlights below.

First of all, the buyer should decide on which type of sink he is choosing. So, if there is an empty and visible space under it, then you should give preference to products made of metal, which look beautiful and quite aesthetically pleasing. As for plastic structures, they look unattractive, so it is better to use them so that they are covered with something.

Despite the fact that the siphon is a relatively small detail, it is still worth choosing it so that it fits perfectly with the overall picture of the interior.If an overhead sink is installed in the bathroom (on the countertop), as well as a product made of stone, ceramics or glass, then in this case it is worth giving preference to a structure made of metal - the elements will look very harmonious with each other. As for the type of product, it is advisable to give preference to bottle or pipe - in this situation they look quite expensive, and they are also characterized by ease of use. When choosing a design, it is advisable to remember that modern manufacturers offer a large selection of product colors, this allows you to select them for a specific picture of the interior.

When choosing a siphon for a sink, the size of the bathroom or kitchen must be taken into account. In the event that the space is small, then a corrugated type design is perfect for it - they can take any shape, as well as be located on any area. Practice shows that when using this type of siphon next to the sink, you can easily place other objects that need to drain water.

When choosing a siphon for a summer cottage or a house in which there are problems with heating, you need to pay attention to dry-type structures.

When choosing an object, you need to pay attention not only to the type of product, but also to its throughput. Practice shows that a standard size sink siphon will not work if water flows through it from different objects with a high pressure. In such a situation, it is worth choosing a design with a non-standard section diameter.

Modern siphons on the market can be divided into smooth-walled and ribbed ones. Manufacturers are increasingly recommending to give preference to smooth-walled products, citing the fact that fewer blockages are formed in them.

Some siphons are designed with a non-return valve. Its main action is aimed at preventing the reverse flow of liquid, as a result of which an unpleasant sewage odor can be avoided. Installation of this type of siphon is appropriate if the pipes are located at a slight slope.

In the buying process, it is also worth paying attention to the cost of the product - it determines its quality and, as a result, the duration of its service life. Practice shows: metal products are much more expensive than plastic ones, but their service life is longer, which is primarily due to the resistance to mechanical influences from the outside, as well as the strength of the material.

When choosing a siphon, you must pay attention to those configurations that have a special purpose. So, modern manufacturers supply to the plumbing market special siphons for kitchen sinks, the size of which fully corresponds to the standard throughput, and the pipes themselves often have protection against adhesion of fat and excessive clogging.

What should you pay attention to, having completely decided on the choice of the product? When buying a structure, you need to check whether all the parts are in place. In the event that a branded product is purchased, then a quality certificate must be included with it. It must certainly reflect the characteristics of the product and the material from which it is created. Also, any good siphon must be accompanied by a warranty card. According to the warranty period stated in the document, it is possible to determine the quality of the construction: the longer it is, the more the manufacturer is confident that the product provided by him will serve for a long time.

It is also recommended during the purchasing process to personally measure the length of the pipe and its diameter.

Varieties of washbasin siphons

Depending on the type of construction and material, there are several main types of drains:

• With corrugated pipe.They have the simplest design and are therefore the easiest to install. Such a system is very flexible, does not take up much space, it is easy to hide it behind a sink or in a cabinet, the U-shaped bend is fixed with plastic clamps. But corrugated siphons also have disadvantages: the inside of the pipe is not smooth, so small particles of waste are clogged into its folds. Because of this feature, such devices become clogged more often than others and they need periodic maintenance (with the help of chemical agents or ordinary cleaning in a removed state).

• Pipe-type siphons. They are made of hard plastic or metal, and are U-shaped or S-shaped. Thanks to the smooth surface, food and other waste does not clog the walls of the product and often does not need to be cleaned. But this type of device requires sufficient free space under the sink.

• Bottle siphons. At the moment, this particular species is very popular. The design has a special flask that resembles a bottle in shape - hence the name of the model. They are installed on almost all types of plumbing (sinks, showers, washing machines and dishwashers, etc.). They are compact and attractive in appearance, especially made of various metals. Another feature: if an object that needs to be pulled out (jewelry or any other small thing) got into the drain, this can be done without difficulty.

When choosing a siphon, the parameters of the sink should be taken into account. If the dimensions of the drain hole are normal, any standard siphon model will fit it. Otherwise, you will have to look for a device of other sizes or order it taking into account all the features of the sink.

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Siphon installation rules

In order for the purchased siphon to function correctly, it must be assembled in accordance with the requirements specified in the instructions.

The sequence of assembling the structure is as follows:

1. A large flat gasket should be placed on the large hole in the main tube and the existing cap screwed on the side.
2. It is necessary to screw a union nut onto the branch pipe, and on top of it - a conical gasket. Then the assembled structure must be inserted into the upper hole and screwed tightly without pinching it.
3. In the event that a siphon with an overflow is being assembled, it is necessary to connect this part with a branch pipe outlet. To do this, you first need to put a nut on the outlet, and on top of it - an annular gasket. Next, the assembled structure must be connected to the overflow, placing it towards it with a blunt end and tightening it with a nut. In the event that an overflow is not provided in the siphon design, this assembly stage should be skipped.
4. At the final stage of assembly, you should take a corrugated pipe and carefully put a union nut on it, and on top of it - a cone-type gasket. After that, the pipe must be screwed to the siphon, thereby completing the assembly process.

   

In order to install the assembled siphon directly into the sink, you must follow the following recommendations:

1. First of all, place the O-ring on the pipe, with the strips facing up. The second ring included in the kit should be pulled over a metal mesh, which should then be placed over the sink.
2. Next, you need to adjust the siphon to the drain hole in the sink.
3. Screw the screw into the grille.
4. Using the rigid tube that comes with the siphon, you need to connect the assembled structure to the sewer. It should be noted that at this stage, the process is much faster for the corrugated pipe.
5. At the final stage, it is necessary to let water through the siphon, checking the tightness and correctness of its installation.

Construction of various types of siphons

Bottle. Consists of the following parts:

• a siphon reservoir, generally in the shape of a flask;
• inlet pipe for connecting the tank with a sanitary device (sink, bathtub);
• a discharge branch pipe that connects the tank with a sewer outlet;
• a set of clamping nuts and O-rings for assembling and sealing the component parts.

Bottle siphon device
The flask performs the task of a garbage collector, so the siphon device is especially important for a kitchen sink. Leftover food, vegetable peelings and other waste accumulates in this tank, rather than on pipes, where they would be more difficult to remove.

Pipe. Its main components:

1. Top part to be bolted to the drain hole.
2. The middle part, which is a rigid pipe, bent in the shape of the letter S.
3. The lower part connecting the siphon to the sewer outlet.

Pipe siphon device
A set of sealing rings and clamping nuts are used to assemble and install the unit.

Siphon-corrugation. The simplest in design and the cheapest. It is a corrugated pipe that bends easily in the desired direction. The installer independently makes the necessary form to create a water seal.

Corrugated siphon device

The upper section of the pipe is equipped with a drain grate, a fastening bolt and a nut, the lower one - with a special adapter for connecting to sewer pipes. The structure is not equipped with additional branch pipes and overflow.

The best siphon manufacturers

If you want to purchase a good quality structure of the type in question, you should give preference to those released on the market by trusted manufacturers. Today, the following brands are among the most demanded brands:

• McAlpine (Scotland);
• Hansgrohe (Germany);
• Akvater (Russia);
• Grohe (Germany);
• Viega (Germany);
• Alcaplast (Czech Republic).

Practice shows that the designs presented by the listed manufacturers are in an expensive price category, however, according to statistics, they last much longer than their cheaper counterparts.