What is a dry toilet for the home and how to use it: types and principle of operation

A centralized sewage system in a garden plot is more rare than common. Therefore, most often a dry toilet becomes the only solution to quickly organize a sanitary area in a garden plot or in a country house. Especially for you, we have compiled a rating of the TOP 10 best dry closets, in which we will consider popular models, tell you how to choose and find out the opinions of users.

Definition and main features of a dry closet

A successful alternative to a traditional wooden booth, under which there is a cesspool, is a dry closet. It is a compact device for plumbing purposes. It disposes of human waste. It allows you not to give up comfort in various places and conveniently perform your natural needs. It is used in suburban areas with residential buildings, taken on picnics, and installed on construction sites.

In a classic dry closet, the process of waste decomposition is accelerated thanks to the natural ingredients used. The design can also have artificial drying, and even forced ventilation. This device meets modern sanitary requirements.

The installation of a dry toilet complies with sanitary standards Source westcoasthorsemen.com

Waste recycling is carried out through the use of chemical compounds and mixtures of natural origin in sanitary products. They are made based on the following products:

• microflora is a liquid in which bacteria live that can process waste;
• fine-grained powder mixtures that absorb liquid substances and activate complete waste recycling;
• peat, capable of absorbing liquid and mineralizing human waste;
• compost, which works in the same way as in the pit of the same name;
• sawdust, used exclusively with peat;
• bioenzymes - liquid substances based on enzyme proteins that can decompose waste of organic origin.

Liquid for dry closets Source onlinetrade.ru
Manufacturers produce dry closets of various designs. However, each of the models consists of two main parts - a toilet and a tank where waste is collected and processed. The containers are connected using a special lock. A reliable seal between the two chambers is also provided. The device is also equipped with a container for a special liquid or special filler. It depends on its operating principle.

The design of the dry closet is thought out and simplified as much as possible so that anyone can easily use and clean it. Moreover, such a device does not need to be installed above a cesspool, and some models do not even need to be connected to the sewer system. All dry closets are self-contained structures. This allows them to be installed directly in the house or in a utility unit. Products can be moved from place to place.

There are also stationary models. For their installation, separate rooms – toilets – are prepared in advance. This type of plumbing has a cassette container. It collects waste. During cleaning, it is detached, emptied and washed. After that, you just need to install it in its place.

A stationary dry closet is installed in a separate pre-prepared room Source lubosad.ru

Devices for meeting daily needs are selected depending on the preferences of the homeowner and his financial capabilities. The method of waste processing is also taken into account. Therefore, it is necessary to take a closer look at each type of device and find out what a dry closet for the home is, depending on its operating principle.

Problems of choice

If you type “dry toilet reviews” in the search bar, you will get a lot of conflicting information, so when choosing, it is better to rely on the facts that lie literally on the surface and common sense.

Criterias of choice:

1. Ease of use.
2. Dependence on external temperature.
3. Possibility of installation at home without additional manipulations.
4. Waste disposal method.
5. Additional options.

From the point of view of convenience of performing natural needs, the chemical type of dry closet is the most comfortable. It can be used both sitting and standing. Rinsing with water is hygienic, and washing is not particularly burdensome.

The peat dry closet is equipped with a damper that opens when there is a load on the seat. There is no flush, washing is possible, but problematic.

Electric models can only be used while sitting. The urine receiver is located in front and in this way it is somewhat similar to the sanitary fixtures that are installed on the ISS. It is clear that in emergency cases or in a slightly inadequate state, it will not be possible to strictly follow the instructions for use. Washing during use is difficult. In general, this is a quiet nightmare for a housewife or an apologist for cleanliness.

Without additional manipulations, it will not be possible to install either an electric or a composting dry closet at home. The latter does not require an electrical outlet, but a container for liquid is required. You also need to think about where to route the ventilation pipe.

The most difficult thing to dispose of is chemical toilet waste. Even green (eco-friendly) degrading fluid is quite harsh. Blue is just Chernobyl. But it’s very easy to pour, even your hands don’t get dirty. It's much easier to get dirty cleaning a peat toilet. But after six months you will get good compost. In electric models, “Claas’s ashes” can be removed without problems. But you will have to decide for yourself what to do with the liquid fraction.

Additional options - the possibility of an electric drive flush pump, filling indication and other gadgets make using the device more convenient. But they make it significantly more expensive.

Peat dry closets are the most dependent on external temperature. At values ​​below 50 Celsius, bacterial activity stops almost completely. If you are choosing a dry toilet for your summer cottage, then opt for chemical models.

The caustic liquid does not freeze to minus 10, and in the flush tank, if hygienic shampoo is added there, to minus one degree Celsius. The electric toilet seems to be the most resistant to frost. Although no one can predict what will happen to the liquid fraction outlet pipe in severe frost.

Of course, the performance of the device must also be taken into account. It would seem that the more, the better. But keep in mind that a full waste tank of a chemical dry toilet with maximum capacity weighs 20 kilograms. If you are an athlete, don’t hesitate to buy it.

Now that you know the answer to the question: “Dry toilet, how to choose?”, You can consider the top brands of manufacturers of these products.

Liquid dry toilets

Such devices use various solutions to process waste. These compounds are added to water. Liquid models are the easiest to use and have a not very complex design. It consists of two main parts. The lower block is manufactured in various volumes. The dimensions of the device depend on this parameter.

So, the volume of a dry closet can be 10-25 liters. In this case, its dimensions will be 450*450*420 or 320*380*310 mm. These are the most common dimensions for such Bio-plumbing fixtures.

The upper part consists of the following structural elements:

• seats;
• covers;
• tank for clean water;
• flush pump;
• holes through which water flows in.

Design of the upper part of the dry closet Source mtdata.ru
The lower part is intended for collecting waste. In this block their splitting is performed. The design of the lower part includes:

• waste storage container;
• tank full indicator;
• a valve that allows pressure to be relieved;
• drain pipe;
• dividing valve rod;
• a recess intended for storing a bottle of liquid;
• valve for connecting to the top.

Liquid dry toilets are well suited for installation directly inside a residential building. These are hygienic structures that do not emit unpleasant odors due to the liquids used. Their individual blocks are hermetically connected to each other. For this purpose, the design has a rubber seal and two fasteners.

A special information indicator can light up in two colors. If the waste tank is empty, it will be green. When the container is full and needs to be cleaned, the light turns red.

Liquid dry toilet with fill indicator Source g.io.ua

See also: Catalog of companies that specialize in the design and installation of sewerage and water supply

Waste is decomposed using various compositions. Manufacturers produce them based on chemicals or microorganisms. They not only decompose waste, but also eliminate unpleasant odors. They are added directly to the water, which is poured into the flush tank of the upper part of the device or into the lower side. In the second option, they begin to work as soon as waste enters the tank.

If special compounds are poured into the lower part, then the drain tank is usually filled with aromatic substances. They not only interact with solutions that dispose of waste, but also facilitate the flushing process and neutralize unpleasant odors.

When operating this plumbing fixture, the following rules must be followed:

• When using a composition with microorganisms, processed waste can be disposed of by dumping it on the ground. They can be poured anywhere on the site, because they will not harm humans or nature. Typically, safe compounds are marked using green. This prevents them from being confused with chemical solutions.

Composition with microorganisms Source avito.st

• When aggressive chemical compounds are used, they are drained into a pre-prepared special pit. At the same time, substances from it should not penetrate into the source of drinking water for people and even animals, or get into the beds.
• It is not recommended to throw regular toilet paper into the dry closet. This can be done if it is intended specifically for such devices. Otherwise, the structure will become clogged, and the waste will not look like a homogeneous liquid. It is necessary to install a separate container for toilet paper directly next to the plumbing fixtures.

The process of operating a dry closet will not present any difficulty for any person. Recycled waste is drained by unfastening the upper part from the lower unit. Then the sewage from the container is poured onto the soil or into a special cesspool. The liquid mass itself is removed directly through the drain pipe in the lower container. There is also a reset button here.

After draining the waste, the emptied tank is washed and filled with clean water. Then processing solutions are added to it. This operation is carried out according to the instructions on the packages.

Operating a portable toilet: pouring processing compounds and draining waste Source onlinetrade.ru

It is also necessary to consider how to choose a dry closet for a private home. When selecting a liquid device, the following criteria are taken into account:

• Waste tank volume.

If the container holds 10-12 liters, then in most cases the portable toilet will allow 20 to 25 flushes. Because of this design feature, three people can use it without cleaning for 3-4 days.

If you need to drain sewage less often, then it is recommended to choose a more capacious product. Thus, a design with a lower volume of 20 to 25 liters will allow you to perform from 45 to 50 flushes. 3 people can already use such a device without draining waste for about one week.

• Height of the portable toilet.

The device must be convenient for every family member. If the structure will be used by people with limited mobility, including the disabled and the elderly, then it is recommended to supplement the device with a stand with special handrails, which will make it more convenient to use the product.

Dimensions of a portable toilet, including its height Source stroyudacha.ru

Voting for the best dry closet

Which dry toilet for a private home would you choose or recommend?

Bioecology Pragma

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Bioecology Ecolight Summer Resident

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Separett Camping 1165

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Piteco 905

33.33 % ( 1 )

Thetford Porta Potti 565E

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Enviro 10

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Thetford C224-CW

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BioLet 25

0.00 % ( 0 )

Separett Villa 9011

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Separett Flame 8000

0.00 % ( 0 )

BIOFORCE COMPACT WC 12-10

0.00 % ( 0 )

Peat dry toilets

Owners of suburban areas definitely need to find out how a bio-toilet for a home works, in which waste is processed using peat. After all, this device is the most popular among all similar products today. It has a simple design.

Conventionally, such a portable toilet consists of a body, a toilet seat with a lid and a separate reservoir for peat. The filler is poured onto the bottom of a specially designed container. This is where the waste ends up.

During operation of the device, the waste is sprinkled with peat. Manufacturers also equip the design with an upper container. It is used to store the filler so that you don’t have to go anywhere for it or install a separate tank for it in the room.

Peat portable toilet with a container for storing filler Source dsports.ru

A portable toilet powered by peat is chosen to suit the size of a specific room. Although most models are compact devices, their dimensions still need to be taken into account. In addition, the room must be equipped with effective ventilation.

A peat toilet can be installed in an extension to the house or placed in a separate building. The reason for this is its operating principle. During operation, such a device is not filled with additional liquids intended to neutralize unpleasant odors.

There are also peat portable toilets that separate liquid and solid waste. They come in different containers. When operating this design, solid waste is accumulated in a reservoir with peat, and the liquid is transferred to a separate sealed compartment. This operating principle of separating dissimilar substances is called separation.

Prices

If we arrange dry closets of different types according to increasing prices, then in terms of the level of “capital” investments, liquid models are the most affordable.

Liquid

Portable samples with a lower tank volume of 15 to 20 liters generally cost no more than 10,000 rubles. (prices start from 4,500 rubles). Although there are luxury products, for which you will have to pay a little more - for example, Thetford Excellence+ costs from 11,500 rubles.

Manufacturers evaluate dry closets familiar from city streets according to their level of equipment:

• “Economy class” costs from 13,500 rubles. ("Economy class);
• for the “standard” you have to pay 3000 rubles. more;
• “comfort” will cost almost 20,000 rubles;
• “VIP” (with heating and lighting) – about 30,000 rubles.

In fact, the VIP version is a standard set of toilet amenities for an ordinary city apartment Source racolta.ru

Video description

The peat portable toilet is described in the following video:

On a note! When cleaning a dry closet, peat along with waste is poured into a compost pit. Here the mixture produces an environmentally friendly fertilizer for garden beds. As a result, site owners are given the opportunity to install a zero-waste structure.

The advantages of peat portable toilets include:

• no need to use water;
• the ability to not empty the waste container for a longer period compared to liquid devices;
• lower price than the cost of liquid-type structures.

However, peat models also have disadvantages that need to be taken into account. This is the inability to completely neutralize the unpleasant odor and the need for a permanent installation. In addition, it is necessary to arrange a place on the site where the mixture of peat and waste will be stored.

Stationary peat dry closet Source promtu.ru

What's better

From the description of the operating principle, advantages and disadvantages, we can derive recommendations for choosing a dry closet:

• Models operating on peat mixtures are attractive for owners of large plots, where there is a place for a compost pit that will be far enough from the house, recreation area and will not disturb the residents of the neighboring dacha.
• Compact liquid models can satisfy owners of small cottages that are visited infrequently. The main necessary condition is that the cottage must be located near the city and the organization that disposes of the contents of the lower tank.

The advantage of a liquid toilet is that it can be purchased with a stall. Source service071.ru

• An electric dry closet will bring “joy” to a wealthy dacha owner if there are no power outages in the village.

Electric dry closet

This type of equipment has a complex design. Therefore, it is necessary to understand how a dry closet for a home, which needs a constant connection to the electrical network, works.

The electric toilet has a plastic body. It contains two tanks, one of which is designed to receive solid waste, and the other for liquid. Manufacturers produce electric dry closets in different designs. Models are manufactured that must be connected to a sewer or drainage system. This allows fluid to drain away. In other models it completely evaporates.

Solid waste is auscultated after entering a separate tank. As a result, they take on the appearance of a powder. This occurs under the influence of a certain temperature and due to the presence of a built-in compressor in the design of the device, which pumps heated air.

One of the options for an electric dry closet Source kvartirnyj-remont.com

When installing an electric toilet, a ventilation system is installed. Its design depends on the processes occurring inside the device. Regardless of the configuration, it should effectively remove unpleasant odors. The air duct is connected to a special pipe on the housing. It is connected to a silent fan. It is this unit that ensures the removal of unpleasant odors.

Liquid and solid waste enter different receiving chambers due to the presence of a separate bowl in the design, consisting of two parts. The flap between them is activated by pressing a small button or pedal. Opening this partition allows solid waste to fall into the collection container.

This tank contains heating elements. It is thanks to them that waste turns into powder. This happens in about 1.5 hours. The powder is light in weight. Only 200 g of such waste accumulates if a dry toilet is constantly used by one person for 3 months. Therefore, servicing of the device is carried out very rarely. However, experts advise cleaning the tank of waste every week.

Tray for collecting and removing waste in an electric dry closet Source yaroslavl.cms-bx.ru

There are also models whose design provides for the installation of disposable bags. They turn to ash along with solid waste. This process begins to execute as soon as a special button is pressed.

Popular brands

Today, the production of dry closets has also been established in Russia; they are not much different in quality from foreign ones.

PitEco

Compost peat toilet made in Russia. Models are available with a recovery tank with a volume of 44 to 72 liters.

• The body is made of polypropylene.
• Withstands loads up to 200 kg.
• The drain is dry.
• The peat mixture is scattered by a mechanical centrifuge.
• There are no automatically opening flaps of the storage tank.
• Toilet seat height is from 440 to 460 mm.

Costs from 20 to 45 thousand rubles .

Biolan

Peat dry closets produced in Finland. The volume of the storage tank is significant - on average 140 liters.

• The body is made of polyethylene, models are offered in different colors.
• Peat is fed into the tank by dumping; there is no mechanical centrifuge for spreading.
• Toilet height 530 mm.

There are automatic doors that are activated upon landing. The storage tank is divided into two containers, which makes it easier to unload the spent substrate. The price is about 40 thousand rubles.

How to learn how to make granular pellets with your own hands? Read on.

Copper pipes and fittings for water supply - quality guarantee for 200 years!

Ekomatic

Another representative of the country Suomi, where peat is the main mineral resource. Part of the production was transferred to Russia under the Torfolet brand.

• The volume of the storage tank is also significant - an average of 110 liters.
• The seat height is slightly lower - 50 cm.

Otherwise it is very similar to Biolan. There are models with the option of heated seats. Costs at least 40 thousand rubles.

Thetford

The most popular brand of chemical toilet, originally of Dutch origin. Since 1994 it has been produced under license in China.

• The volume of the storage tank is from 10 to 21 liters.
• Has a water drain.
• The volume of the flush tank, which is also a toilet bowl, is from 10 to 15 liters.
• The pump for bleeding the drain can be either manual or electric (battery powered).

The popularity of the brand is explained by the fact that the algorithm for using it is almost identical to a regular water closet. It is easy to clean and keep clean. The disadvantage is the high consumption of the splitting liquid, which costs, on average, 2 thousand rubles for one plastic container with a volume of 2 liters. A storage tank with a volume of 20 liters requires 150 ml of liquid. To ensure the full physiological cycle of one person, it will be enough for 7 days. The drainage is very convenient - there is a pressure release button, which eliminates splashing. Price from 7 to 14 thousand rubles.

Separett

A Swedish brand that produces both composting and electric dry closets. The latter are divided into two series:

• Villa
• Flame.

Separett Villa dries the solid fraction, reducing its volume by a third. The liquid is drained through a hose into a special container. Flush dry. The model with index 9011 can be powered by a car battery. Costs from 32 to 55 thousand rubles.

Separett Flame burns solids and operates only on 220 volts. To operate it, you need disposable cellulose bags, a set of which (500 pieces) costs 5 thousand rubles. The device itself is fantastically expensive - from 250 thousand.

Mulltoa Biolet

Composting toilets, which are produced in Sweden. A special feature of the design is an electrified centrifuge for spreading peat, heating the compost to activate the activity of bacteria, and an electric fan for pumping out vapors and gases.

• There is no filtration of the liquid fraction and no tube to drain it into a separate container.

Three models differing in the volume of the collection container:

Mulltoa Biolet 15 (for a family of 3-4 people), Mulltoa Biolet 25 and Mulltoa Biolet 65 , which can be used to provide comfort for a family of seven, provided they live permanently in the house. Price from 80 to 140 thousand rubles.

Video description

See the video for the operating principle of one of the electric dry closet models:
In addition, electric dry closet models are available, equipped with a freezing chamber. These are expensive devices. Their price is 2-3 times more than the cost of a toilet with a combustion chamber.

In such devices, waste is frozen directly in the storage tank. This process occurs in the same way as in freezers. During freezing, no unpleasant odors spread. The proliferation of harmful microorganisms is also excluded.

Comparative characteristics

Studying the comparative characteristics will help you decide on a specific device from the rating.

Table 1. Comparative characteristics of models

Briefly about the main thing

A dry toilet is a modern version of a device for disposing of human waste. Manufacturers produce it in mobile and stationary versions. It can work by adding environmentally friendly or chemical products, using peat or electricity.

Models are equipped with receiving containers where waste accumulates. For liquid devices, no additional ventilation is required, since unpleasant odors are neutralized by chemicals. Peat models make it possible to obtain environmentally friendly fertilizer as a result of processing. Electric toilets can burn or freeze solid waste. However, they must be connected to a sewer system to remove liquid.

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Advantages and disadvantages of equipment

To decide on the type of dry closet, you should become familiar with the advantages and disadvantages of all types of equipment.

Table 2. Advantages and disadvantages of types of dry closets

Self-production

Despite the fact that the basic models in the product lines I described above are relatively inexpensive, many people make a composting toilet for their dacha on their own. In this section I will tell you how such a device works, and also give an algorithm for its construction.

The simplest design with a capacity of 25 - 30 liters.

Both outdoor and indoor modifications operate according to the same principle:

1. A wooden box with a toilet seat attached on top is used as a makeshift toilet.
2. Under the box there is a container with peat, into which feces fall.
3. A small container can be placed on the floor, but for a container of 50 liters or more you will have to make a recess, placing the tank below ground level.
4. The entire structure is placed either in the house (in a separate room with good ventilation) or in a classic wooden booth.

The instructions for making such a dry closet are extremely simple:

1. We choose the place where it will be located. If it is on the street, then we dig a hole to place a container in it, if in a house, then we partially dismantle the floor covering and form an area under the floor for the tank.

Street version design

1. To collect feces, we use any plastic container: it is important that it has a sufficiently large volume. Buckets from building materials, wide-necked barrels, small cubic containers, etc. are suitable.
2. Before installing the tank, we think about how we will remove it for cleaning. If a container with a volume of more than 100 liters is used, it can be made stationary by equipping it with a hatch for removing waste. It is advisable to make the hatch on the side or rear wall - solely for hygienic reasons.
3. We build a toilet box on top of the container, assembling it from durable planed boards on a wooden frame. The inside of the box is lined with several layers of polyethylene to protect it from moisture.
4. We install a toilet seat with a lid on top. Next to the box we fix a box with a volume of about 10 liters, which we fill with peat or a mixture of peat and sawdust. For dosing, place a ladle with a comfortable handle in the box.

Options for composting toilets

The ladle must be attached to the toilet seat with a strong cord or chain. It's better to do this right away, rather than after you have to remove it from the toilet where you or your loved ones drop it.

1. Before use, pour several portions of sawdust into the tank and fill in about 3 liters of water. Stir the resulting substrate with a stick and pour into it a bacterial culture to quickly decompose waste, as well as a chemical composition for disinfection and deodorization.

Special peat for filling the tank

Using a dry toilet in the country

Dry toilets are compact devices that are used in summer cottages. There are different types of products, but almost all consist of 2 chambers. The first is a toilet, the second is a waste disposal container. The structure is easy to assemble; there is no need for communications; the most important thing is that no aroma emanates from such a unit. Can be placed in any suitable room. This is especially important for dachas where there is no possibility of communication.

Important! Waste that is processed using various fillers can be drained and dumped anywhere on the site without damage.

The design of modern dry closets is mobile, so when you go to the dacha, you can take it with you every time, it will successfully fit into the trunk of a car. But there are also stationary structures, which, nevertheless, retain all the advantages of such units.

Features of operation of liquid devices

These models are in wide demand due to their mobility and affordable cost. They are convenient when caring for elderly, sick people, and for quickly arranging a toilet on the go. However, for constant use at home or in the country, it is better to choose another model - one that does not require such frequent maintenance.

Principle of design and operation

Liquid dry closets are completely autonomous. No ventilation pipe, drain hose or electrical connection is required.

The autonomous bio-closet is designed very simply; the design contains two blocks:

1. Top knot. Designed like a toilet with a seat, a lid and a tank for a chemical composition or liquid with active natural ingredients. The flush pump is located here.
2. Storage device. The lower compartment is a large waste collection tank. Its displacement ranges from 12-25 liters.

The body of the storage tank can house a niche for storing reagents, a separating rod and a pressure relief valve.

The same chemical or biological composition is poured into the lower module as into the upper section. After entering the waste storage facility, its processing begins - the sewage is broken down to a liquid consistency, and the unpleasant odor is removed

Both compartments are securely fastened together. The lower tank is additionally equipped with a seal that retains aromas.

The design of most models includes an indicator - a light beacon notifies the user when it is time to empty the storage tank. The indicator light changes color from green to red.

After filling, the upper block is removed, and the lower one is taken to the drainage site. What it will be, a drainage pit outside the site, sewerage or land, depends on the operating conditions and the type of reagent used

It is not advisable to throw regular toilet paper into a liquid dry toilet - it does not decompose under the influence of degrading compounds and leads to the tank quickly filling.

Liquids for refilling dry toilets

To stimulate the breakdown of waste, chemical reagents or biological compounds are poured into the unit.

Features of various fillers:

1. Chemical liquids. They react quickly and are able to process waste into a liquid mass within a day and completely neutralize the odor. The chemicals are aggressive; the storage tank must be emptied into a sewer or a separate pit away from the site so that the reagents do not harm the environment.
2. Biocompositions. Environmentally friendly preparations with a complex of microorganisms: bacteria and enzymes. They break down impurities into water and neutral components. The drainage can be done directly into the ground - the processed mass will not cause harm to plants and animals.

Biological compounds convert sewage into fertilizers for the garden.

Organic preparations have a milder effect. At the same time, they effectively remove unpleasant odors and prevent the development of pathogenic and pathogenic microorganisms

The only disadvantage of biological fluids is their high cost.

Among the chemical reagents most often used:

• formalin-containing substances;
• nitrogen-containing and ammonium compounds.

The first group of chemicals is considered very caustic and toxic. They quickly dispose of waste and neutralize odors. However, their use is permissible only in urban conditions - it is necessary to remove formalin-containing liquid only through the sewer network.

Such toilets are not suitable for a summer house or a picnic. Or, when leaving your vacation spot, you will have to take the filled tank with you and dispose of the contents through the city sewer

The approximate consumption of the drug is 1 liter for 4 months, about 8 refills.

Ammonia liquids are safer. However, the active ingredients, when in contact with oxygen, can quickly decompose - in 5-7 days. A significant advantage is the possibility of using recycled sewage for compost. To dispose of them, sewerage is not needed, so this dry toilet can be used outside the city.

Pros and cons of liquid models

The strengths of all types of liquid dry toilets include mobility, versatility of use, independence from communications, and loyalty to the pricing policy. In addition, the installations are completely sealed and hygienic - they do not emit unpleasant odors.

Liquid models can be placed outdoors during field trips, used in kiosks, on yachts or indoors, for example, to care for a seriously ill person

Disadvantages of such dry toilets:

• the need to purchase consumables;
• frequency of cleaning the storage tank - a 20-25 liter capacity is designed for 50 uses; if operated by three people, the tank will have to be emptied every week.

An additional disadvantage of chemical biotoilets is the toxicity of processed waste.

Recommendations for future dry toilet buyers

When choosing a suitable dry closet, you should be guided by several criteria:

1. Simplicity of design and convenient operation.
2. Hygiene, ability to retain unpleasant odors.
3. Stability, strength, high-quality assembly.
4. Ease of maintenance.
5. Volume of the tank. It must correspond to the number of residents.
6. Seat height. The optimal size is 400–460 mm, but the presence of children must also be taken into account.
7. The presence of a seat heating function and a tank full indicator.

For use in a country house, it is advisable to purchase a portable plumbing system. In summer she can be outside, in winter - in the house.

It is better if the selected dry toilet does not use chemicals. Then the processed waste can be used as fertilizer.

If the model is electric, then where it is to be used there should be no problems with power supply.

Both in a country house and in urban housing, a bio-toilet bowl should be comfortable and convenient. They buy it for a long period, so the plumbing fixtures must be of high quality and durable

For an apartment, a stationary option with a good design is better. If finances allow, you can install an electric model with many functions. You also need to calculate the volume of the container; the frequency of its emptying depends on this.

If you don’t have enough money to buy a dry closet, you can build it yourself. You can read how to do this in this material.

Using toilet stalls in winter

Many summer residents and construction organizations do not stop using toilet cabins with the onset of winter. However, in order to successfully use a toilet stall in winter, you need to know the features of their operation in cold weather.

Can toilet cubicles be used in winter?

Of course, but keep in mind - any toilet will freeze if the temperature drops below 0°C and the toilet continues to be used in standard summer mode and is not prepared for winter. This should not be allowed, otherwise you will not be able to use the toilet stall until spring.

What should be done?

- firstly, when low temperatures set in, it is necessary to adjust the maintenance regime. So at negative temperatures down to -10, you need to service once a week, and with a further decrease in temperature it is better to do this at least 2 times a week. Frequent cleaning of the receiving tank will prevent the formation of ice.

— secondly, to prevent the contents of the tank from freezing, anti-ice should be poured into the tank. Anti-ice is an additive that prevents the contents of the receiving tank from freezing. For safety reasons, use special, non-toxic compounds, without ethylene glycol. And a special non-freezing liquid for mobile toilet cabins also deodorizes the toilet and removes unpleasant odors.

— thirdly, do not leave a full tank in the cold - if frozen, its contents can damage the walls of the tank. If you try to break the frozen contents of a container in the cold, you can easily damage the walls of the tank, or it may simply burst.