Water accumulating on the site can cause some inconvenience to residents. If this happened to you, this indicates the need to install storm sewers. It will consist of storm water inlets, pipes, trays and wells.
What is it - storm sewer
If you wondered what it is - stormwater, you should know that it is a system where water is collected for subsequent output. If such a design will be installed on the site, then it must be located around the perimeter of the house. As a result, it will be possible to obtain a whole network of branches that will collect, filter and accumulate water.
If there is no storm drain on the site, then precipitation will flow to the house, destroying the foundation and the adjacent area over time. When wondering what it is - a storm drain, you should know that it has a standard scheme, which is quite simple. Channels can be located above the groundor under the ground, they intersect each other in several places, and these points are called water collectors.
Stormwater design should be carried out together with the drainage system. These structures are laid simultaneously. Elements will be placed in parallel, this is true if the foundation of the building is laid too deep.
Methods for installing stormwater drains
Sewage sewer can be classified according to installation methods. Water may enter the drain pipe. However, the system near the foundation must be mounted without errors, it is important to select pipes whose cross section will be able to withstand the imposed loads.
The main advantage of installing a drainage system is the cost-effectiveness of components. However, water will splash and fall on the walls of the house. You should be prepared for the fact that the drain pipe will silt up about 3 times faster.
Thinking about the question of what it is - a storm drain, you should also pay attention to the consistent design of the outer trays. This scheme is quite common, but when the temperature drops, it can freeze. Sometimes in the spring an ice crust forms on the blind area. The main advantage of a storm drain arranged according to this technique is ease of installation.
The third method is the installation of storm water inlets located under the roof drains. The pipes are connected in a single circuit, which is located in the ground. The liquid is discharged outside the site, which reduces the degree of load on the drainagesystem that remains untouched. This storm drain fits better than the rest into the exterior of the site and does not damage the landscape.
How to make a storm drain yourself
After you have figured out what it is - a storm drain, you can begin to equip it. Work begins with drawing up a diagram, which is necessary for calculating the material and acquiring it in the right quantity. It is important to determine how many risers are in the drain from the roof. The number of storm water inlets will depend on this value.
You can determine the length of the pipe, taking into account the size of the perimeter of the house. At this stage, you must determine the depth of the system. If you plan to use it all year round, then the depth should be below the soil freezing line. The surface laying scheme is suitable for the storm drain, which will be used only in the warm season. The stormwater device may include the installation of a heating system on the roof, which will ensure the melting of ice in the cold season. In this case, the system will need to be buried by 1.5 m.
Preparing
Before you make a storm drain with your own hands, you must mark and dig a trench for pipes. The depth is determined taking into account each area individually and depends on the level of soil freezing. The trench should be placed a maximum of 50 cm below the frost line. These centimeters will be needed for the installation of pipes and the installation of a sand cushion.
The width of the trench will depend on the section of the pipes and shouldbe 15 cm larger, which will make it easier to lay the sand cushion. If you plan to arrange a stormwater drainage with your own hands, and it is not possible to dig a trench of the required depth, then it is recommended to lay pipes and insulate them with special material.
The diameter of the products should be 100 mm or more, but in the latter case, the trench should be wider and deeper. The storm drain will work on the principle of gravity, so it is important to ensure a slope of 2 cm per meter. If you are thinking about the question of how to make a storm drain, then you should also take care of the presence of manholes, the number of which is determined by the number of bends and branches. They are covered with thermal insulation and supplemented with special hatches.
If the step from the gutter or collector to the house exceeds 10 m, then the transition must be supplemented with a manhole. If rainwater is planned to be used for domestic purposes and brought to the site, then the sewage system is made in such a way that the initial accumulation is in the collector.
Sequence of work
Installing a storm drain may not include the installation of manholes. In this case, it is necessary to cut holes in the pipe through which a certain volume of liquid from the system will go into the soil. However, it will be impossible to clean the system. The pipes should be fastened together with maximum tightness, for this the seams are treated with waterproof glue or sealant.
When the collector and pipes are laid, a vertical drain must be installed, which shouldbe directed to the place where water will accumulate. The drain is connected to storm water inlets, which are also called rain funnels. You need to install them slightly below the main level of the track. The storm water inlet is placed in such a way that water from the roof gets to it.
The definition of storm water was presented above, but it will not allow you to understand in what sequence to carry out the work. Therefore, before starting them, you need to familiarize yourself with the technology. There are roofs where the storm water inlet is located only on one side, in which case it is not possible to directly connect the sewer pipe to the funnel. Under such conditions, a guide elbow is installed. It is necessary to divert water to the drain.
Such structures are supplemented with gutters, through which water enters the side where there is a drain. The trays and the water collector should be 60 cm deep. The water will not be very clean, so sand traps should be installed in the system, which should be located from the downpipe to the receiving trays. These elements are the same trays, but with special gratings.
Final works
Before the entry line to the garage and the porch, door systems must be completed, they will perform the function of water intake trays. From above they are covered with plastic or iron bars. It is not recommended to bury wastewater immediately after its installation. A trial run is recommended.
To do this, pour a bucket of water into the storm drain and see if they letwhether the pipes are liquid, and whether gravity flows correctly. Particular care should be taken to check those places where the pipes connected to the trays and storm water inlets at the base of the house.
Design cost
If you are unable to install the stormwater yourself, then you should contact the specialists. They offer the buyer installation with and without material. System design will cost the consumer about 1100 rubles. per running metre. But further works will differ in cost, which is affected by the use of the material by the performer.
Cost of works
Installation of sewerage with material will cost from 1800 rubles. per running metre. If you yourself will purchase the material, then the services of specialists will cost 1200 rubles. per running metre. In this case, we are talking about deepening the system by 1 m. If pipe insulation is added to the work, then the price rises to 2100 rubles. per running metre. When the material is not purchased by the contractor, the price is reduced to 1700 rubles. per running metre. If you need to increase the depth of the storm drain, you will have to pay 3100 rubles. and 2500 rubles. per running meter respectively.
In closing
The basic storm sewer scheme provides for the presence of downpipes and those that lead to collectors, as well as storm water inlets. The system has point catchment wells, funnels, gutters and a special tray system. Before starting installation work, it is also important to take care of the presence of additional elements in the form of siphons,sand traps and plugs. The latter are necessary to prevent the return of water in the opposite direction.
