How to make house foundation drainage with your own hands on clay soils. Foundation drainage - main types and installation technologies Why do you need a drainage pipe in the foundation

The proximity of groundwater or significant accumulation of moisture in the soil negatively affects buildings, especially the foundation. To eliminate excess moisture, you need to take a number of actions related to the installation of a drainage system.

Here are the main reasons why a building requires foundation drainage:

when the basement is located below the groundwater level or less than 50 cm to it;
if the house is built on clay soil;
if the place where the building stands is an area of capillary moisture.

Foundation ring drainage

If it is necessary to protect a structure (foundation) that does not have a basement floor or a building that is erected on heaving soils from water, then ring drainage is used. As a rule, it is performed at a distance of 0.8 to 3 meters from the foundation walls, behind the blind area.

The foundation drainage system is based on tubular drains, which are installed along the contour of the supporting structure. The principle of operation of the device is to reduce the groundwater level in the protected circuit, thereby significantly reducing the risk of flooding of underground buildings.

The depth to which the drains will be laid in relation to groundwater depends on how much their level will decrease. Considering the fact that the laying of ring pipes is carried out at a certain access from the building, this can be done after the completion of construction work.

The device of a ring drainage makes sense if it is made no higher than the depth of soil freezing, otherwise the system will not cope with the tasks assigned to it.

Cost of turnkey foundation ring drainage (price per meter)

The amount that ring foundation drainage will cost depends on several factors, so the price is determined individually:

depth of the building foundation;
the perimeter of the building, taking into account the distance from the wall.

The cost will also be affected by the timing and location of the project.

Wall foundation drainage

Wall drainage of the foundation of a house is done in a number of cases:

when installing basement floors at a height of no higher than 50 cm above the groundwater level; when placing buried parts of the house below the calculated groundwater level; when building a house on clay and loamy soils; when the house is located in the area of capillary humidification and preventing the appearance of dampness in the room ;
when constructing a technical basement in clay soils when buried more than 1.3 meters from the surface of the earth.

The distance between the drainage pipe and the wall of the building depends on the width of the foundation and the location of inspection wells. The drain material is selected based on the depth of their installation and taking into account the aggressiveness of groundwater.

The cost of turnkey foundation wall drainage (price per meter)

When ordering foundation drainage, the customer is primarily interested in the cost of the service. PSK "InzhStroyIzolyatsiya" can provide only basic prices for arranging drainage for the foundation of a house, and the price is indicated per linear meter. The total amount is formed taking into account the following factors:

scope of work;
soil type;
drainage material used;
deadlines.

Types of foundation drainage depending on the design

The main purpose of arranging drainage for the foundation of a private house is to protect the structure from moisture entering the basement. Proper installation of the system will prevent flooding of the basement, keeping the foundation dry.

Foundation drainage work is possible both during the construction of a house and in an existing building. The type of system will depend on the type of foundation itself and other factors:

location of the site - hill or lowland;
soil type;
depth of groundwater;
type of house foundation;
relief features;
frequency of precipitation.

And if in one case a simple storm sewer will be enough, then in another it is necessary to install a full-fledged drainage device for the foundation and surrounding soil.

With basement or ground floor

In most cases, the basement of the house is planned to be used as a functional area - boiler rooms, saunas, gyms, even living rooms are located there. That is why they need to be protected as much as possible from groundwater flooding.

For basements and basements, the complex of foundation drainage works includes wall drainage and then high-quality waterproofing of the structure. These measures must be carried out together, since individually they do not solve the problem.

With strip foundation

If the building is erected on a strip foundation, then work on drainage of the foundation will be aimed at preventing the following problems - mobility of the foundation during soil heaving and moisture penetration into the concrete structure.

In this case, a ring drainage is performed, which will drain water from the building and relieve lateral soil pressure.

Grillage or slab on stilts or just a slab

In this case, draining the foundation of the house is an optional procedure. It is advisable to do this in the case when the house is located on clay soil and the owner simply wants to be on the safe side. The only thing you need to remember is that if the slab is mounted on piles, they must be located below the freezing point of the soil in order to prevent the building from moving.

How drainage work is performed

Turnkey foundation drainage includes a set of works to protect the building from contact with groundwater. It is made in the form of a closed system of pipes located at a certain angle below the level of the base of the very foundation of the house. The pipes are connected to each other by special wells to drain water.

If you need high-quality foundation drainage, it is recommended to use wear-resistant two-layer corrugated pipes with a diameter of up to 110 mm for effective water drainage; the price of the work practically does not depend on the selected material.

The complexity of drainage arrangement directly depends on the type of soil, the terrain on which the building stands and the depth of groundwater.

Before laying pipes, it is necessary to carry out a set of measures in stages.

Excavation of the foundation. The outer part of the foundation is thoroughly cleaned of soil, the old waterproofing layer is removed and the foundation is left to dry.
Treating the outer part of the foundation with a primer based on bitumen and kerosene.
After drying, treat the base with moisture-resistant bitumen mastic. It is recommended to fix a special painting mesh into the finished layer of mastic.
After complete drying, another layer of mastic is applied.

Then the next stage of work is when the foundation is drained on a turn-key basis and the necessary materials are prepared (the price directly depends on their quality). The process of setting up the system is as follows.

The building is surrounded by a trench along its entire perimeter at a distance of 1.5 meters from the foundation. All work is carried out taking into account the highest point. The width of the trench should be at least 35 centimeters greater than the width of the pipes.
To install rotary wells at the outer corners, special extensions are made.
A sand layer 25 centimeters thick is poured onto the bottom and thoroughly compacted.
The next stage is laying geotextiles so that the edges protrude beyond the edges of the trench and backfilling with coarse gravel with a layer of up to 20 cm.
Next is the installation of drainage pipes, maintaining a slight slope relative to the lowest point of the system. Bends for rotary wells are fixed at turns.
Installation of a well for pumping water. This is done at a depth of up to 60 centimeters, the bottom of the pit is necessarily covered with geotextiles, and only then a plastic tank with perforated walls is installed.
All pipes are brought to the collection tank at an angle, then covered with crushed stone. The ends of the geotextile are connected and secured with special clamps.

It is very important that after laying the pipes, the drainage is carefully covered with a sand cushion and a layer of turf. Each stage is very important, because a properly designed system will be able to maintain optimal humidity in the area and reliably protect the house from flooding.

What will you get by collaborating with us?

In order to make the water protection system as effective as possible, it is necessary to order professional turnkey foundation drainage, which includes a series of studies, project preparation, and then the implementation of all work to protect the building from moisture. This task can only be done by professionals who not only have the necessary engineering education, but also have sufficient experience. This is the only way to guarantee 100% results.

The PSK InzhStroyIzolyatsiya company has been engaged in drainage arrangement and waterproofing of foundations and other elements of buildings in Moscow and the region for more than ten years. Our team includes only experienced specialists who will carry out work to protect the building from water in the shortest possible time and with high quality. At the same time, you will always be offered a range of work - from studying the structure and soil, drawing up a project to commissioning the facility.

Order turnkey foundation drainage

Have you not yet decided who to entrust the process of creating turnkey foundation drainage? In this case, call us, find out our terms of cooperation - a specialist will come to analyze the object completely free of charge, and make your choice.

It’s easy to submit a request - by phone or by filling out the feedback form.

Many developers decide to build a house with a basement. The cost of building a basement is comparable to the cost of building a regular floor.

Only non-residential, auxiliary premises can be located in the basement - laundry, gym, sauna, boiler room, workshop, storage room, etc. All these rooms could be located on a regular floor or attic with better comfort and convenience.

In the recent past, it was customary to build houses on deep strip foundations. The construction of a basement in such a house was indeed beneficial - the foundation served as the outer walls of the basement premises.

Application in modern low-rise construction of lightweight structures and makes it unprofitable to install a basement in the house.

However, lovers of tradition and solidity often choose a house with a basement on a deep strip foundation. To comfortably use the rooms in the basement, The basement must be protected from ground moisture.

How to protect your basement or basement from water and dampness

is constantly present. The groundwater level, the amount of perched water, and soil moisture on the site vary with the seasons of the year and depend on the structure and properties of the soil, the amount of precipitation, the terrain and the type of coverage on the site.

If the house is located on a slope, then, as a rule, it is necessary to drain water flowing down the slope away from the house. Water flows down the slope both on the surface and along underground horizons.

To protect the basement from water, two lines of defense are arranged:

A ring drain around the house, at the level of the base of the foundation, which intercepts and removes from the basement walls most of the water tending to flood the basement.
Waterproofing of basement walls and floors, designed primarily to protect against capillary soil moisture.

Only basement waterproofing, without drainage, leads to the water still finds a hole. If not immediately, then in a few years. A damp basement is money down the drain.

If you decide to make a basement or ground floor in your house, then I definitely recommend doing wall drainage, you will not regret.

Wall drainage is done simultaneously with the construction of the foundation. Its cost is minimal, compared to the cost of protecting an already flooded or damp basement from water.

If you want to take a risk, save on a drainage system and abandon its device, then conduct thorough research. Assess seasonal fluctuations in groundwater levels at the site. Does it appear in the spring? Find out from your neighbors if they have drainage, if their basement is flooded.

The lack of drainage, as a rule, will require strengthening the waterproofing of the foundation and increasing the cost of its installation.

The design of the wall drainage is adapted solely to protect the basement or the ground floor from the water. If it is necessary to solve other problems, for example, lower the groundwater level throughout the entire area or reduce water saturation, then other types of drainage are used.

The installation of wall drainage around the basement is, as a rule, mandatory:

With a constant or seasonal rise in the groundwater level above the base of the foundation.
If perched water appears on the site in the spring.

For a house located on a slope, on the side of water flowing down the slope.
If there is a waterproof layer of soil on the site.

The last condition is caused by this. To reduce the forces of frost heaving, the soil cushion of the foundation and the cavity of the foundation pit are usually covered with permeable soil. If the soil on the site is waterproof, then the surface water will seep into the permeable foundation backfill and accumulate there.

Where to direct water from the roof

Water flowing from the roof through drainpipes should not seep into the ground next to the walls of the house.

You can find a description of the design of a drainage system that directs water from the roof into wall drainage pipes. Wall drainage pipes in this case have a dual purpose - they serve both to collect groundwater around the foundation and to transport water from the roof.

Using leaky wall drainage pipes to also move water from the roof is quite risky, and usually ends up flooding the basement during heavy rain.

It is best to install a separate drainage system to drain water from the roof and surface runoff from areas on the site.

Sectional view of wall drainage around the foundation of a house

(click on the picture to enlarge)

Scheme of ring wall drainage of a house basement

Drainage pipes - drains, are laid along the foundation walls and create a protective ring around the house. At the corners the ring of drains breaks in the drainage wells. The water collected by drains is discharged into a storage, prefabricated well.

Water can be removed from a prefabricated storage well in several directions:

Used on the site for household needs and watering plantings.
Drop onto the terrain outside the site.
Filter into the underlying layers of soil.
Head to the central sewer of the village.

The method of using drainage water is chosen based on local conditions and the desires of the home owner.

To discharge drainage water into the central sewer system of the village, according to the rules, permission from the owner of the sewerage network and payment for services for receiving and transporting wastewater are required.

Soil particles settle in drainage wells, settle to the bottom and accumulate, which are carried by water in drains. In addition, the wells are used to monitor the proper operation of the drainage system and periodically, as necessary, wash the drainage area with a stream of water to remove sediments that have accumulated there.

Drainage wells are installed at the turning angles of the route, when the slope or height difference changes, as well as on straight sections every 40-50 meters. It is not necessary to install a well at turning corners if the distance from the corner to the nearest well is no more than 20 meters. The absence of wells at two corners of rotation in a row is not allowed.

Slope of drainage pipes

The length of the drainage section between adjacent drainage wells should be no more than 50 meters. Drains are laid with a slope of more than 0.5% (0.5 cm per 1 meter of pipe length) towards the collection well.

The angle of inclination is selected so that at the bottom mark of the drainage ring around the house the bottom edge of the drain is placed at 20 cm(to the height of the gravel backfill) above the base of the foundation. At the top mark of the ring, the sole of the drain should be located at 20 cm. below the floor level in the basement.

It is not allowed to bury wall drainage (including gravel backfill) into the sandy foundation cushion, so as not to reduce the load-bearing capacity of the pillow and foundation.

To place pipes with the required slope sometimes it is necessary to increase the distance between the base of the foundation and the floor level in the basement more than is required for design reasons. This makes foundation construction more expensive.

In this case It can be advantageous to abandon the construction of wall drainage and perform remote drainage. Remote drainage pipes are laid at a distance of 1-3 m. from the foundation. In this case, the bottom elevation of the drains may be lower than the base of the foundation.

It can also be advantageous to install remote drainage to protect an already built house with a basement.

Ring wall drainage device

How to make wall drainage with your own hands is clear from the drawings, which show the whole process step by step.

Geotextiles

Geotextiles are synthetic fabrics specifically designed for laying in the ground. The material allows water to pass through, but retains soil particles. The drainage design prevents siltation of soil particles into the filter backfill, drainage slabs and pipes.

Filtering, draining layer on the foundation wall

On the foundation wall Drainage slabs or drainage mats are placed on top of the waterproofing. Special permeable slabs or mats made of polymer material intercept water that seeps into the foundation wall. Through channels in the slabs or mats, the water flows down to the gravel layer and then enters the drainage pipes.

In addition, drainage slabs or mats protect the waterproofing from mechanical damage.

The drainage slab is separated from the soil by a layer of geotextile. Manufacturers produce drainage mats with a layer of geotextile already attached to their surface.

Drainage slabs can be easily made with your own hands. The slabs are cast from Expanded clay of the largest and lightest fractions (20-40 mm and more), slabs made of this material will not only drain water, but also serve as insulation for the basement walls. Slabs with a thickness of at least 100 mm. laid out dry with a bandage along the basement wall and covered with a geotextile cloth.

For insulating basement walls, instead of drainage slabs Insulation boards - extruded polystyrene foam with a thickness of 100 - are glued pointwise onto the waterproofing of the foundation. mm, A profiled plastic membrane and geotextile are fixed on top of the insulation boards.

Membranes with geotextile fabric already attached to their surface are available for sale. Through the membrane channels, the water that has leaked through the geotextile flows down to the gravel coating of the drainage pipe. The membrane also protects the insulation from damage by soil.

Drainage pipes

Corrugated plastic perforated drainage pipes with holes evenly spaced on the surface are available for sale on the construction market. The outside of the pipes is covered with a layer of geotextile, which protects the pipes from clogging with soil particles.

For installation of wall drainage, pipes with a diameter of at least 100 are used. mm.

The pipes are connected to each other using special couplings. At angles of rotation, it is recommended to join the pipes with two fittings with a rotation angle other than 90 degrees. As a result, the rotation of the pipe will be smoother.

Drainage wells

Drainage wells are assembled from ready-made plastic sections with a diameter of about 300 mm.

You can use any other pipes of approximately the specified size. The bottom of the well should be 200-500 below the level of the drainage pipes mm.

Every two to three years, the wells are cleaned and the drainage pipes are washed with a stream of water.

Prefabricated storage well

The water collected by the drainage system is discharged into a prefabricated storage well. A well is a reservoir where a certain amount of drainage water accumulates. From the reservoir, using a submersible drainage pump, water is periodically pumped out in a certain direction, for example, into a surface drain and then onto the terrain outside the site.

The capacity of the well - the volume from the bottom to the supply pipe, is chosen large enough so that the frequency of pumping out water is not burdensome for the owners.

If the pumping process is automated, then the volume of the well and the degree of concern of the owners can be significantly reduced. To do this, a stationary drainage pump equipped with a float switch is installed in the well and electricity is supplied.

In the latter case, for the construction of a small-volume collection well It is convenient to use the same design as for a drainage well. In order to increase the volume and ensure the operation of the pump, the collection well is made deeper than the drainage well.

It is necessary to ensure that The water level in the collection well did not rise above the level of the drainage pipes.

Drainage water from a collection well can be pumped into an underground container, where it is accumulated and used for watering plantings, washing cars and other household needs. This is beneficial if in the same container direct surface drainage water from the roof of the house and from the sites on the site.

The design of the storage tank is similar to the design of a septic tank for an autonomous sewer system. For example, such a reservoir in the shape of a well, like a septic tank, is made from. You can also use plastic containers.

Water from the roof and surface drainage system under no circumstances should it fall into drainage system. Drainage cannot cope with the removal of large amounts of water during a rainstorm, and rainwater through the drainage can flood the basement. Pipes and wells of drainage and drainage systems must be isolated from each other.

If on site the groundwater level is low, and the lower layer of soil on the site is permeable, then the prefabricated well can be made in the form. Water from the well will seep into the permeable soil layer. The depth of the well should be such that the filtration zone is located in a permeable soil layer.

Protection of the drainage system from freezing

Drainage system - drains, wells at the level of drains and below, in winter must be located in a non-freezing layer of soil. It is known that in spring water appears on the surface of the earth much earlier than the soil frozen at depth thaws. Frozen drainage will not be able to remove water from the foundation.

The soil surrounding the drainage may freeze if it is located higher. For example, for the Moscow region, the calculated depth will be 0.7 m. This development of events is especially likely if the basement of the house is not heated or well insulated.

In case of danger of freezing, the soil is insulated, laying slabs of PSB 35 foam plastic or extruded polystyrene foam with a thickness of 100 under the blind area of the building mm.

Everyone understands perfectly well that not a single house can stand for long without a high-quality foundation. Likewise, no foundation can do without good protection from moisture and water. Architects, even when creating a project, propose to immediately provide for drainage of the foundation of the house and draw a waterproofing system on the diagram.

The Russian proverb “Water wears away stones” is widely known. Here it will come in handy, and in its truest sense. Even the strongest and most solid foundation of a house can be easily destroyed by water. If the groundwater level is high, external waterproofing alone (see) simply cannot protect the basement from water. In such cases, an entire underground system of channels is developed that will withstand the load and keep the foundation dry. The house will have dry air, and fungus will never grow in the basement or basement. The price for this work in specialized companies is high, but you can do everything cheaper yourself.

To install foundation drainage with your own hands, use special types of pipes. They must be suitable for
deep installation in the ground. By making the foundation drainage with your own hands, the owner of the house will extend its service life by several decades.

Before performing such work, the question arises: how to do the foundation drainage yourself? This can be done by reading our article to the end and watching a video with step-by-step work. The attached diagrams will also help. Of course, not everyone makes such a system in their home, but in vain. There are a number of cases when installing drainage is simply necessary:

if according to the project the building will have a ground floor or basement;
if the geodesy of the area is characterized by increased soil compaction;
if the groundwater level is equal to one or less than five shovels;
if there is a system in the basement of a building that needs to be protected from flooding in any climate.

In the spring or autumn seasons, soil saturated with moisture will have a lot of weight. Consequently, the pressure on the foundation will increase. In winter or early spring, frost often alternates with thaw, this greatly affects the foundation of the building. Water penetrates into the smallest cracks, eroding and increasing their size. This can be avoided by organizing proper drainage.

In such a situation, it is best to contact specialists who can design a drainage system, but the price for this service is high. In the absence of extra material resources, we can do this ourselves. It is important to understand that the drained water should not accumulate in puddles on the site or paths. It’s better if she leaves your territory altogether.

Types and types of drainage

Modern drainage can be of two types:

Perfect type drainage. It is made on waterproof water. Water enters this type of drainage from the top and sides. This means that this type should be sprinkled on top and sides.
Drainage of imperfect type. It is made above the waterproof level. Water enters it from above, below and from the side, which means that such a foundation must be sprinkled on all sides.

Video on the device:

Today there are several types of drainage from the foundation of a detached building:

Ring foundation drainage. It is used to prevent flooding of basements of detached buildings built on sandy soil. Water easily penetrates through this type of soil, and only ring drainage can save it. What is important to consider when choosing this type of drainage:

the action of such drainage implies a ring, the inside of which will be isolated from water;
if water comes from one specific side, then such drainage can be laid in the form of an open circle;
such a system is installed below the floor level of the basement room that must be protected from moisture;
Such a system should be laid at a distance of 5-8 meters from the wall itself. If this distance is less, then care must be taken to remove, weaken or settle the soil of the building itself.

Wall drainage. This drainage is used to prevent flooding of the ground floors and basements of buildings built on clay or loamy soil. Water penetrates through such soil quite difficult. What is important to know when choosing this type:

It is often used as a preventative against water;
This drainage system is often used with a mixed source of groundwater;
Such drainage is laid outside the building. The distance from the wall to the drainage system is equal to the width of the foundation of the building itself.
Such a system is laid no lower than the level of the base of the foundation;
If the foundation depth is too deep, the drainage may be slightly higher.

Reservoir drainage. This type of drainage is usually used in combination with ring or wall drainage. What is important to know when choosing such a system:

It is advisable to use such a system when there is a large amount of groundwater on any type of soil;
placed for prevention in clay and loamy soil;
To interact such a system with external drainage, special pipes are laid through the entire foundation of the building.

The main difference, of course, between a ring drain and a wall drain is that it is located directly next to the foundation itself. A roundabout — at a distance of up to 3 meters from the foundation. Otherwise, in principle, they are similar.

The device of a classic drainage system, what is it?

The drainage system is a system of pipes that are interconnected and have a closed device system. Lay the drainage system with your own hands below the lowest point of the building level. The entire device is laid at a certain angle to allow water to drain.

At each corner section of such a system, a reservoir is made, which is called a well. These wells are installed so that you can visually assess the condition of the drainage and if there is a need to easily clean the system.

All excess water enters the pipe structure and from there into the wells. From such wells, water is discharged outside the site. The method of draining water from the building depends on which drainage project is chosen.

Such a system easily neutralizes the mechanical load from groundwater. It is worth noting that even with the most proper drainage system, it is difficult to avoid moisture in the basement, especially on the walls 100%.

To completely prevent water from entering the device, which is located below ground level, it is necessary to waterproof the foundation itself.

Classic drainage system diagram

The classic do-it-yourself drainage system is the system around the foundation of the house. Drains are installed at an angle of 5-8 degrees. The entire perimeter of the building is surrounded by such a system, starting from the highest point to the lowest. At the end there is a drainage well in which the pump is located.

When building such a system with your own hands, use pipes with a hardness of SN6 or more, but in no case less!

The entire perimeter system is equipped with reserve wells. At every 90-degree angle, it is imperative to install such wells with sludge collectors. Otherwise, the system will often silt up. Each type of foundation has its own drainage features.

How to install the system yourself?

Ground water level

Of course, before any construction work is done, its design is drawn up. Having drawn up a project, it will be easier to calculate the material used and calculate how much the work will cost. The price for such a project in companies is high. But you can greatly reduce the price by calculating everything yourself.

Then you need to find out the occurrence of groundwater in your area. To do this, you can use special equipment or call specialists. You can do this yourself.

To determine the water level, dig a test hole in the area, approximately 2.5 meters deep. You will be able to see the layers of soil. You will see their structure, and also recognize their character. Only then can you begin the main work.

Preparing the foundation of the building

The foundation itself also needs careful preparation before making a drainage system. For this:

We dig up the old foundation around it and remove all remnants of waterproofing from it. If they exist, of course.
Drying the foundation. This can be done using a heat gun or on a sunny and warm day, then the foundation will dry out on its own (but this will take much longer and may take a day — two).
Now we apply new waterproofing:

coating;
penetrating;
made of polyethylene;
lining (bitumen)

For shallow foundations

For this type of foundation, it is best to do drainage at the initial stage of construction according to the scheme. The pipes need to be placed around the perimeter on the outside of the foundation in a circle. Swarm a trench no deeper than the base of your foundation. Wells are dug in the corners to contain water tanks.

Monolithic foundation drainage

Such a foundation is built from monolithic watering. The slab can move when the ground moves. With such movements, the structure itself may move. To prevent this, it is worth considering the drainage system at the stage of designing the house. A slab can become a reliable foundation for your home only with a high-quality drainage system.
When constructing such a drainage, a ditch is dug around the house into which the drainage system itself will be laid. The ditch should be at least 3 meters from the slab. The bottom of such a trench is filled with broken bricks. Then the drainage perforated pipes themselves are installed. They are covered with geotextiles on top, which will act as waterproofing. At the same time, water drains are made.

Strip foundation drainage

The system of such drainage is practically no different from the system of all other types of foundation. A ditch is dug around the house along the perimeter of the foundation, the depth of which should exceed the depth of the foundation itself. Then broken bricks are also placed on the bottom. Make a covering of branches that will strengthen the main floor. Then everything follows the general rules of dismantling.

DIY drainage system

Equipment

You will need:

from low-density polyethylene (HDPE);
made of polyvinyl chloride (PVC);
made of polypropylene (PP);
high density polyethylene (HDPE).

They are produced with a complete set for them. They differ in rigidity and holes (full or partial perforation). You need to choose depending on the hardness of the groundwater flow.
The price for them varies depending on the manufacturer from 1000 to 3000. It all depends on the type and manufacturer of the pipes.
If the price scares you, you can make the pipes yourself from PVC pipes. Just drill holes in them around the entire perimeter.

Crushed stone or broken brick. Crushed stone will cost more, but will also last a long time.
Sand. A regular river one will do.
Plastic barrel (for absorption well). The larger the barrel, the larger and deeper the final drainage hole should be. This issue can be studied in more detail in.
Rotary wells (Special components for drainage pipes or PVC pipes with a diameter of 30 cm or more);
Copper PVC Pipe Clamps
Geotextiles

Step-by-step installation diagram

The work itself is done in several stages:

Your drainage system is ready. But do not forget that without waterproofing the main foundation during its laying, it is impossible to completely protect your structure from moisture.

Excessive amounts of groundwater and sedimentary water have a negative impact on the strength and durability of the foundation of a house and complicate the arrangement of landscape design. Proper foundation drainage moves excess moisture away from your home. The drainage system serves as reliable protection against the destruction of the structure, flooding of the basement, and washing out of the fertile layer from the land plot. When determining the cost of work, the type and quantity of materials used, complexity and duration of the project are taken into account.

The Kanateks company produces a drainage system without Softrock crushed stone at a competitive price. Using ready-made blocks, you can drain the foundation of a private house with your own hands and in a short time. Delivery of orders is carried out in Moscow and other cities of the Russian Federation.

Drainage system around the foundation of a private house

The construction of a private house begins with the construction of the foundation. At the preparatory stage, additional information is collected:

soil type: rocky, clayey, sandstone, sandy loam, gravel;
groundwater level at the site;
places of maximum moisture accumulation;
soil freezing point.

Based on the data obtained, the appropriate type of foundation is selected and its size is calculated. Drainage around the foundation of a house is a must for areas where groundwater is fairly close. Country property owners should take the issue of drainage system seriously. This is especially true if the technical basement is located:

below the groundwater level;
in clay and loamy soil;
at a depth of more than 150 cm from the horizon;
rises above the groundwater level by less than 50 cm.

The installation of a drainage system around the foundation is required for areas where, during periods of increased snow melting and rainy seasons, the groundwater level systematically exceeds critical values. The landscape of such areas looks swampy; trees and shrubs do not grow here; sedge, reeds, and weeds are common.

Building regulations

Before you begin installing drainage for the foundation of a house, you should take into account the construction and technical conditions:

work is carried out in the summer, in the absence of heavy rains;
when doing the work yourself, you should build a canopy from boards or polyethylene to protect the dug trenches from crumbling and moisture getting into them;
to protect the walls of the trenches from crumbling, the structure is reinforced with special gratings;
to protect trees, shrubs, and flower beds, the surrounding area is equipped with wooden blind areas;
excavation of the foundation of an existing structure is carried out to draw up an accurate drainage scheme; at the same time, its dimensions, shape, and depth are determined;
calculation of the laying depth of the pipeline system and the location of drainage wells.

Instructions for arranging drainage

Strictly following the instructions for arranging drainage under the foundation and fulfilling the requirements of construction and installation work will allow you to get the correct answer to the question of how to properly drain water from a site with your own hands. The list of requirements includes:

the distance from the house to the trench should be at least one meter, the width of the trench 35-40 cm;
pipes are placed 10-30 cm below the foundation line;
the bottom of the trenches is covered with a sand cushion, the slope towards the water collector is 1 cm per 1 meter;
Drainage wells are installed no closer than 3.0 m from the house;
inspection and inspection wells are installed at pipe connection areas;
in areas with high humidity, it is necessary to have several water collectors located close to each other and combined into a single system.

Set of materials

To carry out construction and installation work you must have:

shovels: bayonet and shovel;
drill with attachments;
perforated PVC pipes, diameter 7.5-10 cm;
inspection wells equipped with hatches;
plastic containers for catchment;
crosses and fittings, respectively, for manholes and system installation;
rolled geotextiles;
waterproof bitumen mastic to protect the foundation;
sand and gravel.

Installation stages - preparing the foundation of the house

Installation of a drainage system begins with preparing the foundation of the house:

digging out and clearing the surface of soil;
removal of remnants of old waterproofing;
primer treatment and application of bitumen mastic;
fastening geotextile fabric or reinforced mesh;
After the first layer has dried, apply the second.

Then a gravel filter is installed:

dig trenches to a depth below the foundation level;
fill the bottom with gravel, compact several layers manually;
blind area device.

Upon completion of the preparatory activities, the installation of the drainage system begins:

digging a ditch around the perimeter of a private house;
the bottom of the trench is covered with sand;
cover the trench around the perimeter with geotextile;
perforated drainage pipes are placed and covered with a layer of gravel on top;
the edges of the geotextile are connected over the poured layer of gravel;
install inspection wells in the corners of the building;
water intakes are mounted below the foundation, at a distance of 3-5 from the house;

If the project allows the use of collected water for household needs, then pumps are connected to pump it. Finally, the system, ready for use, is backfilled with soil selected during trenching.

Attention to detail

Properly located inspection wells make it easier to monitor and regularly clean the drainage system from dirt. In areas with high humidity, it is recommended to install additional overflow-type water collectors. They perform a backup role and are installed close to the main wells. Main drains are directed to the main water reservoirs.

To prevent cracking and deformation of the water collector, they should not be covered with soil. Using fine gravel as backfill will protect against soil heaving. When calculating the angle of inclination of the drainage system, it is necessary to install the upper point of the system below the level of the basement floor, and the lower point 20 cm below the foundation.

Draining water from the foundation is a complex and labor-intensive process that requires a set of tools and devices, qualifications and experience in this field. To achieve a guaranteed high result in the matter of drainage around a private house, it is recommended to use the Softrock drainage system from the Kanatex company.

Closely located groundwater or a large accumulation of moisture in the soil have a negative impact on any buildings, especially on the foundation. Therefore, to eliminate excess moisture, it is necessary to take measures related to the installation of a drainage system. Making foundation drainage is not so difficult if you know the features of its installation and the technology for carrying out the work.

The need for drainage for the foundation and its function

Even deep groundwater in some cases requires the arrangement of drainage; a large number of factors are considered in each specific case. In some situations, drainage around the foundation must be done anyway. Here are some of them:

When the basement is deep, when it is below the groundwater level, or less than half a meter from the basement floor to it;
If the basement is built in loamy or clayey soil, the groundwater level is not taken into account in this case;
When the depth of underground premises is more than 1-1.5 meters in loamy or clayey soil conditions;
If the place where the building is located is an area of capillary humidification.

Based on the above, we can conclude that drainage is necessary when groundwater is located in critical proximity to the building, or passes high enough, creating the impression of a swampy area with no vegetation. There is no need to develop such a system when the soil is dry, and even during the rainy season the groundwater level does not rise to critical levels.

Important! The need for foundation drainage in clay soil is a correct and reasonable decision.

The main functions of the drainage system include:

If the correct choice of drainage type is made, and the design is carried out in accordance with the design, then the pipes and wells included in the drainage system will significantly reduce the likelihood of the formation of gaps and cracks in the foundation, improving its strength characteristics.

Types of drainage

Depending on the depth of installation of the drainage system, wall foundation drainage is distinguished:

Each of these types of drainage can be either ring type or sheet type.

The ring type scheme is a closed loop that encircles the perimeter of the building. With a deep laying system, such a structure can also be laid radially along the entire plane of the structure.

It is most advisable to build reservoir drainage in the case of a “Swedish slab” type building foundation. It is laid at a level lower than the foundation plane. The peculiarity of its laying technology is that drainage pipes are laid on a sand and gravel bed, which are covered with a foundation slab on top.

Required tools and materials

To make foundation drainage with your own hands, you will need tools and materials such as:

You can get some valuable tips that will help answer the question of how to drain the foundation by watching the video

Work technology

Making foundation drainage with your own hands is quite simple; to do this, you need to adhere to certain rules for its design, depending on the type of foundation of the building.

Slab foundation

Drainage of a slab foundation consists of the following stages:

Columnar (pile) foundation

Drainage of a pile foundation is done in this way:

A layer of 20 cm of sand and crushed stone is placed in a ditch dug around the perimeter of the building, and a drainage pipe is placed on top;
A layer of crushed stone of 30 cm is again poured on top, and geotextiles are laid;
Everything is covered with earth.

Rules for organizing the drainage system

After completing all the work, it is necessary to make wells into which excess water will flow. There are some rules for installing them.