How to clean a storm drain on a roof. Cleaning storm drains and storm drains

Let's consider a real pollution situation storm sewer compacted sand.

For example, let’s take a section of an external storm sewer network with a pipe diameter of 300 mm, a length of 100 meters, with five sewer wells two meters deep, the interval between wells is 25 meters, the diameter of the wells is 1 meter. The degree of contamination of pipes is 90%. The subject of the contract is the cleaning of storm sewer pipes using the flushing method and removal of washed sediments.

Sewer flushing is carried out by a complex of two special machines: a sewer flushing machine and a sludge extractor.

The internal volume of the pipe section of the storm sewer to be cleaned is 7.1 cubic meters. Considering the percentage of contamination, there is 6.4 cubic meters of sediment in the pipes. Five wells contain another 1.3 cubic meters of sediment. A total of 7.7 cubic meters of sediment needs to be extracted.
But the sand in the pipe is in a compacted state and when washed out, the volume of extracted sediment, taking into account the technology of draining water from the suction pump, will be 15 cubic meters.

When pumping out the sludge of liquid consistency washed out of the pipe, partial separation and reverse discharge are carried out in the suction pump. rinsing water, due to which the viscosity of the sediment increases significantly.

The KO-507A sludge pump holds 7 cubic meters of sludge. This means that it is necessary to remove either two suction pumps if the sludge volume is 14 cubic meters, or three suction pumps if the volume is more than 14 cubic meters.

REMOVING SLUDGE TO A LANDFILL FOR DISPOSAL - the process is not fast, especially if your property is in the city center. You can bring three suction pumps to the site. But this will lead to higher costs for pipe cleaning. The optimal solution is the construction of a sludge platform on site followed by removal of dried sediment using garbage containers.

To wash out the sediment, water is required, which is filled into a sewer washing machine.
Water consumption of the KO-512 sewer cleaning vehicle when washing pipes external sewerage is 200 liters per minute. Therefore, 9 cubic meters. of water from its tank, it will pour out, taking into account the remaining balance, in 40 minutes.
To wash out the caked sediment in the pipes and wash it into the storm sewer wells to fill one suction pump (7 cubic meters), it is necessary to drain three tanks of water (27 cubic meters) - this will take two hours of pure working time. But taking into account the arrival and departure of the sewer flushing vehicle to refill with water, this time will stretch to three hours, plus the time for refilling 27 cubic meters. water. The refueling time and, ultimately, the time of work depends on how high the pressure in the hydrant is. It is also important where the hydrant is located and at what distance from the place where the sewer is flushed.

It is optimal when both the drain point of the suction pump and the hydrant for refueling the sewer washing machine are located within no more than one kilometer from the section of the sewer pipeline being washed.

There is a method of working on recharge. This is when the sewer flushing machine is constantly connected to the hydrant and does not need to drive to a gas station, but such successful situations are extremely rare.

What can increase the operating time and, therefore, the cost of cleaning storm drains

• difficult access to sewer wells;
• sewer washing machine and sludge extractor - the vehicles are large and block a significant part of the roadway, and if they are constantly asked to move from place to place to clear the passage, this will significantly increase the work time;
• If sewer wells are on the ground, it is necessary to arrange flooring, since two cars together weigh 40 tons and can get stuck on the ground;
• difficult access to the hydrant or the hydrant is located far from the sewer flushing site;
• difficult access to the place where the suction pump is drained or unloaded;
• disposal of sewerage flushing products at the regional landfill;

FROM THIS LIST IT IS SEEN THAT THE COST OF CLEANING AN EXTERNAL SEWER BY HYDRODYNAMIC WASHING METHOD DEPENDS ON THE QUALITY OF ORGANIZATION OF THE PROCESS. AND ORGANIZING THIS PROCESS IS THE TASK OF THE CUSTOMER REPRESENTATIVE.

Returning to the topic of the article, there is reason to believe that, in a good situation, the example work of flushing a section of an external storm sewer can be completed in a 12-hour shift. If necessary, the work shift can be extended by another hour or two, if it is clear that we will finish in one day. If there are difficulties, the work has to be rescheduled for another day, which entails an increase in the cost of the work.

Storm drainage takes part in the improvement of the site. It is used to collect water after rain and melting snow and remove it beyond the boundaries of the site.

However, over time, all sorts of debris can accumulate in the pipes of this communication - leaves that have fallen there and have begun to rot, small twigs, as well as sand or stones - because of them, varying degrees of blockages can form. Consequently throughput sewer pipe falls, and the water does not flow through it, but instead collects in the yard. As a result, there is an urgent need to clean the system.

One of the options for cleaning storm drains is to contact a company that provides similar services. However, this option may not be affordable for everyone, especially if the pipe becomes clogged with debris several times a year.

Signs of a blockage

In addition to clogging with debris, blockage may occur from oil products and any suspended substances entering the storm drain. Sometimes it can get to the point where the entire system is completely filled with silt and dirt, then it will have to be dug out with a shovel. This occurs due to the negligence of the owners (or personnel who serve the adjacent territory) or extremely heavy rains, which bring with them dirt from higher terrain.

Note! To avoid landslides, it is necessary to build a strong threshold under the fence or in front of it, and next to it, consider another drainage connection so that the yard and the local storm drain are not clogged with dirt.

The difficulty of cleaning directly depends on the diameter of the laid pipes that make up the storm drain. Depending on this, it is determined what kind of equipment can be used to clean it. In the case when the pipeline diameter is 200 mm, a high-pressure mini washer is used. Its productivity, which reaches 1250 hp. per hour at a pressure of 350 bar, allows you to easily remove moderate blockages. The advantage of this sink is that it has small sizes and is quite mobile, so it is successfully used even in places where it is not so easy to reach.

The storm sewer system can deteriorate if it is connected to the general sewer system leaving the house. If a blockage has formed in that communication, then the drainage on the street in the yard may also stop functioning. In addition, the foundation of the house may deteriorate if it begins to flood as a result of melt water no longer leaving the yard.

Note! Creating a storm drain is not that difficult, and if you do it in a timely manner, maintenance will also not take much time and effort. In addition, parts of the building and nearby structures will last longer, which will not become damp or rust from the amount of water standing in the yard.

In fact, the creation of a structure for collecting and draining melt water and rainfall cannot be called a forced additional measure. This is a necessary project, which cannot be avoided during the construction and subsequent operation of a house, no matter whether it is located in the city itself, on the outskirts or outside the city. In addition, if we talk about storm drainage located along the roadway, then this drainage system also quite well preserves the integrity of the road and other objects. Saving on storm drainage when designing the surrounding area around a certain building can later play a fatal joke - repairing the house and objects next to it will cost many times more.

Storm sewer maintenance means installation of a special cleaning system, requiring that all residue collected in the tank be removed from it. Therefore, a pump is required for this purpose. The oil products released during flushing and accumulated in the block flow into a special container and are sent for disposal.

Cleaning methods

When the water drainage system on the site of a house or cottage is built and begins to work, the foundation of the house will no longer become damp, the soil underneath will not be washed out by water, and on the site itself the owners will not need to bypass the puddles that form after the rain. However, such a system will require constant maintenance. This means that the pipes will require cleaning and flushing.

Typically checking and maintaining the sewer system for drainage storm water from the site are carried out several times a year, sometimes once. IN mandatory such a check is carried out immediately after winter leaves and the snow melts, as well as in the fall, after the rainy season, which carries stones, sand and leaves into the pipes.

Note! Of course, cleaning needs to be done if the roof has undergone major repairs not long ago. Such prevention is also done if the house has been plastered or insulated. The fact is that after such work, particles of mortar, bitumen, expanded polystyrene, etc. could get into the storm drain.

How do professionals do it? There are several types of cleaning. Here are some of them:

• mechanical;
• hydrodynamic;
• thermal;
• chemical.

Now briefly about all cleaning methods. The first method, mechanical, involves removing plugs by removing them using a cable or other devices. When pipes are cleaned using the hydrodynamic method, this means that water will be supplied to them under strong pressure, which should break up all blockages. Thermal method is essentially similar to hydrodynamic. But the water that is supplied to the pipes is heated to a boiling point, as a result of which the plugs soften and are easier to remove.

The last option, chemical, is more voluminous. You can use baking soda for cleaning various compositions from stores. However, it has a minus - bad smell and the likelihood of damaging the skin of your hands or body if chemicals come into contact with them. Therefore, if you decide to pierce pipes with chemicals, you need to protect yourself from it by wearing a respirator and gloves, as well as long sleeves and pants.

Causes of blockages and ways to eliminate them

One of the problems can be gutters clogged with debris. The water that flows down them from the roof carries it into the yard, and from there into the sewer, clogging it. Therefore, the gutters on the roof and the gutters leading down from them should be thoroughly cleaned, and any debris that has fallen into the yard should be collected and taken away.

Note! When cleaning your gutters, it is a good idea to check to see if they are properly attached. It is also better to check their slope, since if it is missing, then the water will not drain well, and debris will begin to collect in the gutters.

How exactly do you clean your gutters? As a rule, this is used mechanical method, that is, the use of a cable, as well as manually removing branches, fallen leaves and everything else.

In cases where funnels for receiving water are protected by caps or have grates attached to them, blockages occur less frequently in them, since large debris does not penetrate into the pipes. However, if a blockage does appear, then, in order not to remove the grates, cleaning is carried out by supplying water through a hose under strong pressure.

Cleaning systems with open trays

When a storm drain with open drains has been installed on the site, it will not take much effort to clean it. To do this you will need to go through several steps;

1. first of all, remove and put aside the grate that covered the hole;
2. remove all debris that has accumulated over time from the canal;
3. After this, rinse the channels with water pressure and you can put the gratings in place.

Such systems, where only one outlet is made for drainage, and the entire system is assembled from pipes hidden underground, are much more difficult to clean. Therefore, it is necessary to flush the pipes. As a result, strong pressure of water can break up the resulting sand plugs, heaps of garbage and wash it all away.

Using special equipment

This method is suitable for storm sewers that have low capacity. Typically, the diameter of the pipes laid underground is no more than 200 mm.

When is it necessary to carry out emergency or planned preventive work on large-sized sewers, it may not be possible to do without the intervention of specialists along with the use of special equipment. This is due to the fact that a huge amount of sand and silt deposits can accumulate in wells installed in sewers and in pipe cavities during operation. They cake, and manual removal becomes almost impossible.

For this purpose, in many major cities Today there are enterprises whose purpose is to service underground communications.

What is required to properly clean a storm drain that is overgrown with dirt? First of all you will need:

1. Channel cleaning machine.
2. A vacuum unit capable of removing sludge.

As a rule, all this technology is installed on the bodies of fairly powerful cars. Some of these installations even have several of these functions, that is, they can break through the sewer with the pressure of water from a hydrant, and pump out stagnant sludge.

It should be taken into account that this technique is designed to make the approaches to the storm drain wide and strong enough, so the road must either be designed in advance or operated during operation. It should also be taken into account that a short hose supplying water is more effective for suctioning clogged soil.

How to build a well

Such a well, also called a collector well, is built according to the same principle. It lies in the fact that all water entering this well through a pipeline (that is, after rain and drainage) then enters the general sewer system created on the territory. To prevent water from this well from flowing back into drainage system, a check valve is provided in the collector well.

What size should the collector well cover be? Firstly, water should pass through it freely, and debris should not get inside. Secondly, the cover cannot be located on the roadway. In places where there is heavy vehicle traffic, the well should have a telescopic neck, and its lid should be designed so that it can redistribute the load on the soil located nearby.

Video: flushing storm drains

Cleaning storm sewer pipes up to 1200 mm in diameter

Storm drainage is necessary to collect rainwater runoff. It also serves to drain water that forms after the snow melts in the spring.

However, moisture collection into the system is not sufficient. Storm water must be treated before it can be discharged into water bodies. After all, they are exposed to harmful environments. In particular, the following enters wastewater:

• car fuel and oil residues;
• chemical reagents that are applied to roads to prevent icy conditions;
• sand, earth, leaves and branches.

That is why the “Purely Honestly” company has been providing services related to facade washing with special means by climbers and from the ground for years.

Cost of work

Storm drain cleaning	From 180 rub. behind linear meter
Diagnostics sewer pipelines(with recording video and photo reports)	From 4,000 rub.
Cleaning of wells, grease traps, septic tanks with a suction pump (with sediment removal)	From 1500 rub. for 1 cubic meter
Manual cleaning of wells, grease traps, septic tanks	From 3000 rub. for 1 cubic meter
Pumping of contaminated water from settling tanks, tanks, pits (without removal)	From 500 rub. for 1 cubic meter
Comprehensive (scheduled) flushing of drainage systems	from 150 rub/meter
Defrosting storm sewer pipes	from 10,000 rub.

For the treatment of storm water, special wastewater treatment plants. Thanks to them, water enters reservoirs without foreign contaminants and debris.

There are 3 possible methods of wastewater treatment:

1. mechanical. A simple option is when a trap for sand and other insoluble waste is installed at the inlet of the cleaning device;
2. physical and mechanical. Detains petrochemical products. For this purpose, devices are equipped with centrifuges and special adsorption filters;
3. chemical. It is used in the chemical and oil refining industries and is designed to neutralize the most toxic substances.

The most effective option is to use a combination of three cleaning methods in one unit. That's why modern equipment for storm water treatment designed to solve the following problems:

• sand retention and sedimentation;
• extraction of oil refining industry products from wastewater using an oil and gasoline separator;
• filtration of carcinogens and chemicals;
• additional cleaning;
• final testing of water for purity level;
• disposal of clean and harmless wastewater into water bodies.

The specialists of the company “Chisto Chestno” will professionally organize the treatment of storm water in your private country house and on the dacha plot.

Storm drain maintenance and pipe cleaning

Timely maintenance of storm drains involves cleaning and removing debris from pipes and gutters, but the specifics of these procedures differ significantly from work on.

Main stages of work:

• protective grilles are opened and repaired, or replaced with new ones, if necessary;
• cleaning of storm pipes - in long sections they are cleaned through special inspection wells;
• checking the accuracy of control sensors.

Timely maintenance of storm drains will ensure uninterrupted drainage of wastewater and will have a positive impact on the environment. After all, garbage and silt that settle in gutters and pipes can accumulate harmful substances.

Do not forget that during operation, drainage wells and pipe outlets must be tightly closed with plugs and hatches, this will protect them from debris.

It is also worth checking periodically drainage well to the accumulation of sediment from particles of soil and sand in it, because due to large accumulations, dirt gets into the pipes. To prevent this, you must remember to clean the drainage.

This can be done independently if available. necessary equipment, or you can contact the specialists of the “Purely Honestly” company for professional assistance in storm sewer maintenance.

Cleaning storm sewer pipes using the hydrodynamic method

Most effective way pipe flushing - cleaning storm drains using the hydrodynamic method. It is good because with the help of special hydrodynamic machines it is possible to remove complex blockages, while pipes and drains remain intact.

Cleaning storm drains using the hydrodynamic method includes the use of devices with powerful pumping units high pressure(VD): 190 - 200 MPa. At the same time, the developers have placed such power in a compact body, which makes the operation of the unit as convenient as possible.

There are 2 options for cleaning storm pipes using the hydrodynamic method:

• a strong directed jet breaks up and washes away blockages;
• cleaning using special attachments - nozzles, which increase the pressure of the main jet and spray thin streams of water around themselves with great strength, which allows you to get rid of the main blockage and clean the inner surface of the pipes from deposits.

As a result, crushed waste flows out of the pipe under pressure and enters the treatment plant.

The results of the work can be assessed using - read about this service in the appropriate section of our website.

Cleaning storm drains using the hydrodynamic method is one of the services provided by specialists from the Chisto Honestly company in Moscow and the region. We have specialized equipment and great experience similar works.

Dacha owners and country houses They know firsthand how important it is to equip storm drains so that melted and rainwater They did not spoil the finish and did not flood the foundation. But it’s not enough to organize the right system waste disposal - without regular maintenance, it will quickly fail and “report” this with streaks on the walls and puddles near the house during a heavy rain or spring drop.

To prevent this from happening, it is necessary to carry out timely prevention and be able to quickly remove blockages. Therefore, we will consider in detail what methods the technology for cleaning storm drains has, depending on the type of its design. Also in this article we focus on the causes of clogging drainage systems and preventive measures.

The purpose of storm drains is to collect water from fallen precipitation and discharge it into a special reservoir or simply outside the site through a pipeline network or drainage gutters. Any drainage design can cope with this task.

But to choose the most effective method cleaning and preventing sewer blockages, first you need to find out which system protects your home from rain and melted snow.

Open (superficial) – the most cost-effective and simple design, which is equipped country houses. It is a complex of trays, pipes, gutters that run along the roof and walls of the building -. Through them, water flows to water intake points - surface drainage ditches equipped along the perimeter of the entire site or only local area, and is discharged into the ground.

Unconditional advantages open system: affordable price components, easy installation and easy cleaning. But with significant precipitation, it may not cope with water flows

Closed - the upper part of the storm drain represents the same system of pipes and gutters, only collected waters They are collected in underground sewer pipes, where other wastewater from the house also flows, then into the collector, and only after that it is discharged into the drainage system. In some cases, a pump is additionally installed that regulates the speed of movement of the wastewater.

This system does an excellent job of removing excess moisture from the site without flooding the soil, the formation of puddles and other flaws in the operation of open storm drains. The disadvantages include expensive installation.

In addition, it may be an overwhelming task for a non-professional to make the correct calculation required quantity components, length and diameter of pipes, determine the depth of their installation, the required slope and other nuances. Detailed analysis We have given the features of the design and calculation of storm sewers.

Cost calculation

Professional cleaning of storm drains in Moscow from Kanalservice 24/7. Profitable price for cleaning, hydrodynamic washing and Maintenance storm sewer.

Seasonal and unscheduled cleaning of storm drains at any facility. Fast departure, guarantee for storm drain cleaning work, transparent prices.

The Kanalservice company offers storm drain cleaning services in Moscow and the region at the best price and with a quality guarantee. We clean open, closed and mixed type.

Storm drain cleaning: price of services

Storm sewer cleaning price from 80 rub. per linear meter. The exact cost of maintenance and cleaning of storm drains is discussed with the manager immediately, or we will come out for an assessment and an accurate calculation. The initially announced price remains unchanged, and a guarantee for the services is provided.

When designing a storm sewer according to SNiP requirements, its ability to self-clean is assumed. However, it is impossible to take into account all possible factors (different precipitation rates, pollution due to construction and other work carried out near the site, etc.) that contribute to the formation of blockages. Any system sooner or later needs cleaning.

The Kanalservice company offers maintenance and cleaning services for storm sewers at various sites: in cottage villages, residential neighborhoods, and in enterprises of any size. The company has equipment that allows you to remove all types of contaminants (sand, leaves, tree branches and roots, ice jams, etc.).

Storm drain cleaning: why it’s better to order from us

The advantages of the Kanalservice company include:

• Extensive fleet of equipment and special means. This allows us to clean all types of storm sewers with pipe diameters up to 2000 mm.
• Arrival at the site within a few minutes. Our emergency teams are dispersed throughout Moscow and the region.
• Removing any contaminants from the storm drain. The company’s equipment allows us to maintain and clean storm drains in the area from sand, silt, stones, moss, leaves, branches and other substances.
• Providing a guarantee for storm sewer cleaning.
• The opportunity to conclude a contract for regular maintenance: cleaning storm drains, preventing blockages, etc., which will allow you to be confident that it is functioning properly and save money (after all, a flood caused by a clogged storm drain can cost a lot).

Storm sewer cleaning: price and how much maintenance services cost Kanalservice

The price of storm drain cleaning depends on:

• Type of system. Cleaning storm drains of open, closed and mixed types requires the use of certain methods and equipment.
• Design features. The cost of cleaning storm drains is influenced by the number and type of drains (point or linear), storm inlets, siphons, sand traps and other elements.
• The nature of the blockage. This necessitates the use of one or another cleaning method (hydrodynamic, electromechanical or chemical), or a combination thereof.
• The need to provide additional services: television inspection of storm drains, cleaning of gutters on the roofs of buildings, eastern pipes, etc.

IMPORTANT. When contacting Kanalservice, you can be sure that the price stated by the company’s specialist for cleaning storm drains will not change during the course of the work. We conduct a thorough assessment of the system condition and determine all necessary manipulations. To do this, a process engineer visits the site free of charge.

To find out how much the storm drain cleaning and/or maintenance service will cost you, contact the company’s specialists.

Methods for cleaning storm drains and equipment used by Kanalservice

Storm sewer cleaning and maintenance is carried out by our company’s specialists using the following equipment:

• Mobile high-pressure apparatuses Kranzle 2160 TS and other models. With their help, contaminants are washed away from grates, gutters, open trays and channels, drainpipes. This equipment is also used for hydrodynamic cleaning of deep drainage systems with a diameter of up to 100 mm.
• Electromechanical devices Rothenberger R650, R80 and Ridgit K-45. With their help, we remove solid contaminants of organic and inorganic origin from the system (rags, hygiene products, tree branches and roots, construction garbage etc.).
• Hydrodynamic installations and sewer cleaning machines on automobile chassis. With the help of hydrodynamic cleaning of storm drains, even the most complex blockages are eliminated due to the influence of a powerful flow of water under pressure (in some cases heated to a certain temperature).
• Sludge pumps KO-507AM1, AKNS-10 and TKM-620 for pumping out contaminants from storm wells, storm water inlets, sand traps and other system components.

In some cases, to clean storm drains, it may be necessary to use specialized chemical compositions. Our specialists will select suitable means, based on the materials from which the storm drain elements are made, and will provide high-quality removal pollution.

If you need storm drain cleaning and maintenance, contact Kanalservice. With us you are not afraid of any rain. The company’s specialists will help the sewer system cope with its functions to the fullest.

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