CNS: manufacturing. Sewage pumping station

Buying a house outside the city is an excellent solution for outdoor recreation. At the same time, there are some problems with the supply of electricity to it, as well as amenities in the form of a shower and a toilet. What if there is no central water supply and sanitation on the territory of the house? There are several options for solving this problem: from the toilet on the street with a cesspit to the sewerage station, the KNU. The manufacture of such installations in our time has been undertaken by many plumbing companies, and this will be more suitable for convenience and comfort option. But before acquiring such an installation, you should study its principle of operation, advantages and disadvantages, varieties and choose the appropriate option for yourself.

Application area

Every room where people live, needs draining. This is very easy to do if there is a central sewer on the residential area or an installed septic tank. Nevertheless, the relief features of some territories do not allow the implementation of these options. Then the sewage pumping unit (CNS) comes to the rescue and is an ideal solution for a comfortable life outside the city. It allows pumping sewage to the nearby main system.

CNS have found wide application in private homes, where the level of sewage outlet is located above the sanitary facilities. To such consumers of water can include baths, saunas, swimming pools, where the water flow is very high, and they themselves are located in garages, basements or on the basement floors of premises.

Species of CSN

If you study the domestic market of sanitary installations and products, you can see that the sewage pumping plant there are of two types - domestic and industrial. The latter, as one can understand by name, is not used in private houses, but finds application on an industrial scale, when it is necessary to collect sewage from several large objects. Household CNS (mini) is installed in cottages and private country houses. Another name is sololift. They are also divided into two types by the way of pumping out drains - from one bathroom or two or more.

Selecting a station variety

The need to install sewage pumping stations is due to only two reasons:

1. The presence of toilets in the basement floors of the room.
2. The presence of a nearby central trunk system.

Depending on this, a sololift or a larger CNS is selected. The installation of the first version is designed in such a way that it is mounted directly inside the bathroom between the toilet outlet and the sewage itself. Such a station easily grinds household waste and therefore small diameter pipes can be used for it, which is a more economical option.

The second option is the real CNS, only small in size. Before its installation it is necessary to calculate the daily flow of water in the room and divide it into four. It is also possible to set up the installation in such a way that it spends the most economical energy while maintaining the most efficient work on pumping sewage.

The composition of sewerage stations

What does the CNS consist of? Manufacturing it can be considered simplified, as the most ordinary drainage pit, like the one that is located under the street toilets. Only it is still equipped with specialized pumps that carry out the distillation of sewage to the central trunk system. If you look at the device of such stations in more detail, then it is represented by a whole system: from the storage tank to the pipeline network, and requires before the installation of detailed design.

Let's start with the consideration of sewage tanks of the KNU. They can be made of concrete and steel. However, in recent years, the manufacture of KPS from fiberglass has gained popularity. This material is composite and consists of seventy percent of glass fibers, which are in a binder by means of polyester resins. Fiberglass waste containers, in contrast to other types, have very high strength at a low enough weight, are able to withstand a high temperature range, and also have very high corrosion resistance. All this simplifies the design of the CNS and allows you to get a durable installation for a relatively low fee.

The second important part of the sewage system is the fecal pump. Usually there are two of them - working and reserve. Their task is to raise the drains to the required level for further transportation to the sewage system through the pipeline system. It has special valves for controlling the operation of pumps.

The last component of the CNS system is the float switches, which are designed to control the operation of the pump in the full automation mode. The principle of their operation is based on raising and lowering the liquid level, which leads to the activation or deactivation of the pump, respectively.

How sewerage works

In fact, the principle of operation of any CNS is very simple. At the moment when the drain tank is filled with drains above a certain level, the float switches start the pumps, which begin to pump the waste into the distribution tank. Then they enter the pipeline system and enter the sewerage system.

If a small number of people live in a room and the volume of waste is small, then one pump will suffice. With the increase in volume, it is possible to connect the second unit. The station in this case will automatically switch to the mode of increased load and optimally rebuild its work to save electricity.

CNS installation and start-up

The construction of the pump station is not an easy task, as the sewerage systems are rather difficult equipment in technical terms, and this is best left to professionals from specialized companies.

The stations are installed in the pit, the dimensions of which must correspond to those specified in the instructions. Its bottom is reinforced with slabs of reinforced concrete or poured with cement mortar.

Then to the sewer station the pipelines are connected - supply and discharge, and also the power cable. All work is done according to the documentation for the design of such stations.

Installation of pumps with float switches is carried out strictly according to the instructions, and upon its completion, an experimental start-up of the CNS takes place. Sewerage of the central trunk system in case of correct setting should immediately fill with sewage.

Maintenance of sewerage systems

Many users of sewage pumping plants are interested in the question of whether it is possible to carry out preventive maintenance for this equipment. Specialists do not recommend this. The best option will be a call of the master from a specialized firm that will perform all necessary work on inspection and routine maintenance of the CNS. The manufacture of individual elements and the repair of stations are also carried out by qualified specialists.