The Retention Tank Selection Application enables civil engineers, drainage designers, and landscape architects to quickly select suitable retention tank solutions in accordance with DWA-A 117. In just a few steps, users can enter project-specific parameters, allowing the application to automatically calculate the required storage volume and recommend appropriate system configurations.

The calculations are based on the defined catchment areas, hydraulic design parameters, and integrated rainfall data (e.g. KOSTRA DWD). This ensures reliable and realistic results for the design of modern stormwater retention systems.

The application available in Germany.

The retention tank selection application was developed in cooperation with a leading company in the field of production of concrete retention tanks, Ecol – Unicon. This tool allows for quick selection of the appropriate tank from the Hydrozone series using the most reliable rainfall data from the Polish Atlas of Rain Intensity.

The application allows for better design and adjustment of the retention tank to specific needs in four simple steps. It also contains useful elements for construction planning, such as the functionality of using rainwater. After making the selection, the system generates a PDF file that contains information such as the size of the retention tank, the value of the outflow, the functional diagram of the tank with capacities and a description of the selected functionalities.

The application is available in Poland.

Pipe tank sizing application was prepared together with Amiblu Poland Sp. z o.o., a producer and sup-plier of GRP pipe systems. This tool allows for a quick selection of an underground horizontal storm and melt water retention basin, using the data given by the user.

As a result, the user gets an illustra-tive design of the basin together with its parameters such as basin’s diameter, length and capacity.

All calculations connected with basin’s capacity are done in accordance with DWA-A117 guidelines (for catchment areas of ≤ 200 ha with sewage systems or systems with flow time of ≤ 30 min). The application makes work easier and reduces time needed to prepare necessary calculations when selecting the appropriate retention basin.

The application is available in Poland.

The PEHD tank selection application was developed in cooperation with Uponor Infra, a leading international supplier of pipe systems for underground infrastructure.

The extreme weather phenomena that have been intensifying in recent years, such as torrential rains or long-term rainfall, have confirmed that sewage networks are not adapted to absorb excess water. The solution to the problem may be the use of stormwater retention tanks.

The PEHD retention tank selection application allows you to calculate the required retention volume and select Weholite tanks with appropriate dimensions. Depending on the available space and building conditions, the tool facilitates the selection of the optimal solution for the design requirements.

The application is available in Poland.

The application for selecting a retention tank and retention-infiltration tank was developed in cooperation with Terlan Sp. z o. o. It is a tool that allows for quick selection of the appropriate tank in accordance with the DWA-A-117 and DWA-A-138 guidelines.

Depending on the terrain conditions intended for the tank, the surface from which rainwater is collected and the type of soil, the user receives a selection of tank variants. Thanks to the possibility of choosing different rainfall models (PAND, Bogdanowicz and Stach’s, Suligowski and Błaszczyk), the user can compare the results of calculations for different tanks.

The application allows for quicker design and matching of the type of retention tank to specific needs and the size of the plot/area at the investor’s disposal in simple steps. It contains useful information for construction planning, such as the dimensions of the tank, information about its construction and the estimated cost of implementation. After selecting the tank, the system generates a file containing the above information.

The application is available in Poland.

The infiltration system application was created in cooperation with Wavin Polska and Wavin Hungary. It allows the selection of infiltration tanks and horizontal infiltration pipes based on the DWA-A-138 guidelines. Depending on the surface of the area from which rainwater is collected and the type of soil, you receive the selection of an optimized infiltration system based on the adopted model of rain distribution. This means that the system is selected for the most critical parameters provided for given conditions.

Wavin AquaCell is a modular rainwater drainage system that can be used in both simple and reinforced (double) designs, thus covering the widest range of load-bearing requirements. It is suitable for treating rainwater in green areas, residential areas, parking lots and roads, as well as in commercial and industrial zones. Thanks to its stackable design, it takes up much less space on construction sites and can be transported more efficiently than other models. It can be inspected and cleaned via a test channel.

The selection of a rainwater drainage system depends on the terrain and soil type. It is also possible to adapt the system to the specific intensity and duration of rainfall, which allows for optimal rainwater treatment. The application uses an atlas available for 69 regions of Hungary based on data collected by 100 automatic measuring stations to obtain the size of the given drainage field. In Poland, the application uses the Polish Atlas of Design Rainfall Intensities PANDa. The atlas contains precise data from the last 30 years for a spatial resolution of 5 x 5 km.

As a result of the selection, you will receive a calculation that includes the number of required elements and data about the tank, such as its dimensions, water capacity and structure. In addition, it is possible to download DWG drawings and other materials for the given desiccant system.

The application is available in Poland and Hungary.

The infiltration system application  was created in cooperation with Wavin Hungary. Access to seepage tanks and horizontal seepage pipes according to the DWA-A-138 guidelines.

Wavin Q-Bic Plus for a robust rainwater drainage system, which, thanks to its modular design, offers a full range of designs while maintaining the load-bearing capacity. Can be effectively controlled and cleaned. The net volume per element is available in this model, as is the width of access to the test surfaces. The safest choice for industrial applications.

The choice of the rainwater collection system depends on the type of terrain and the substance. It is possible to have a system for the duration and duration of the rain, which allows for safe management of rainwater. The application uses an atlas available for 69 regions of Hungary based on data collected by 100 automatic measuring stations to obtain the size of the given drainage field.

As a result of the acceptance, you will receive a quote containing construction elements and data on the tanks, such as its dimensions, water capacity and construction. It is possible to download a DWG file and other materials for the appropriate drying system.

The application is available in Hungary.

TREEPILOT is a digital application developed by HAURATON to support municipalities, planners, and engineering consultancies in designing tree irrigation systems for urban environments. It helps create more climate-resilient cities by determining the water requirements of trees and enabling their effective integration into sustainable stormwater management systems.

The planning process is based on a range of input parameters, including rainfall data, site conditions, and the available area for rainwater harvesting. By combining these factors, the application provides a reliable basis for sizing and designing irrigation and water storage systems. TREEPILOT connects sponge city principles with practical engineering workflows, supporting the sustainable use of rainwater in urban landscapes.

The application available in Germany.

The HelCor steel retention tank sizing calculator has been developed based on ViaCon StormWater Solutions – modern stormwater retention systems made of HelCor spiral corrugated steel pipes, compliant with the EN 1090 standard. The tool enables fast and intuitive selection of a suitable retention tank, taking into account technical parameters, required storage capacity, and individual project conditions.

In just a few simple steps, the calculator allows users to select the optimal solution from a wide range of HelCor tanks, characterized by high structural strength, low self-weight, short installation time, and effective corrosion protection. The system also considers the option of applying an additional WProtect (Trench Coating) polymer coating, ensuring corrosion resistance durability exceeding 100 years.

The tool supports the design of tanks in various shapes and dimensions, individually tailored to project requirements. After completing the selection process, the user receives a summary of the key technical parameters of the tank, a proposed system configuration, and the option to generate a PDF file containing a summary of the selected solution

The HelCor steel retention tank sizing application has been developed based on ViaCon StormWater Solutions – modern stormwater retention systems made of HelCor spiral corrugated steel pipes, compliant with the EN 1090 standard. The tool enables fast and intuitive selection of a suitable retention tank, taking into account technical parameters, required storage capacity, and individual project conditions.

In just a few simple steps, the calculator allows users to select the optimal solution from a wide range of HelCor tanks, characterized by high structural strength, low self-weight, short installation time, and effective corrosion protection. The system also includes the option of applying an additional WProtect (Trench Coating) polymer coating, ensuring corrosion protection durability exceeding 100 years.

The tool supports the design of tanks in various shapes and dimensions, individually tailored to project requirements. After completing the selection process, the user receives a summary of the key technical parameters of the tank, a proposed system configuration, and the option to generate a PDF file containing a summary of the selected solution.

The GRAF HDPE Fire Water Tank Selection Tool has been developed based on the Carat XXL underground tank system, designed for the storage of water for fire protection purposes. The tool enables the fast and intuitive selection of a suitable tank or tank configuration by considering the required fire water storage volume, site conditions, and the specific requirements of the protected facility.

In just a few simple steps, users can select the optimal solution from a wide range of Carat XXL tanks with capacities ranging from 16,000 to 122,000 litres. Manufactured from high-quality HDPE (high-density polyethylene), the tanks provide complete watertightness, exceptional durability, resistance to challenging soil and groundwater conditions, and the flexibility to expand the system in the future. Their lightweight prefabricated construction also ensures fast and efficient installation.

The tool supports the design of fire water storage systems for a broad range of applications, including industrial facilities, logistics centres, public buildings, residential developments, airports, wind farms, and forest areas requiring fire protection. It takes into account the key design assumptions related to the required fire water reserve, project location, and installation conditions.

Once the selection process is complete, users receive a summary of the key technical parameters of the recommended solution, including the number and capacity of the selected tanks. They can also generate a PDF report containing a summary of the selected fire water storage system and its main technical specifications.

The application is available in Poland.

The tool enables users to select the optimal solution from GRAF’s wide range of underground rainwater harvesting tanks in just a few simple steps. It supports the selection of flat tanks with capacities ranging from 1,500 to 25,000 litres and cylindrical tanks from 2,700 to 56,000 litres. By combining real rainfall data with project-specific parameters, users can accurately determine the required storage capacity and select a rainwater harvesting system tailored to the needs of their project.

The application supports the design of rainwater harvesting systems for a wide range of projects, from single-family homes and residential developments to commercial and industrial facilities. It takes into account various intended uses of harvested rainwater, including garden and landscape irrigation, toilet flushing, laundry, and other non-potable applications. The tool helps determine the optimal tank size while also estimating the potential water and cost savings resulting from efficient rainwater use.

Once the selection process is complete, users receive a summary of the key technical parameters of the recommended solution, including the selected tank capacity and the estimated utilisation of harvested rainwater. They can also generate a comprehensive PDF report containing the selection summary, a functional system diagram, and essential information about the recommended tank.

The application available in Poland.

The Soakaway Tunnel System application was developed in collaboration with HAURATON, a renowned European manufacturer of comprehensive stormwater management systems.

This tool provides an intuitive solution for designers, enabling the selection of soakaway tanks according to the DWA-A 138E guideline in three simple steps. The selection process is based on choosing the tank’s location, determining its maximum width, the type of terrain (green or trafficable), and the height of the tank. Next, the user inputs the parameters of the catchment area, soil, the surface layer above the tank, and the depth of the groundwater.

The application’s integration with PANDa data ensures reliable results, which is crucial for effective stormwater management system design. The total volume of the tank consists of the soakaway tunnels as well as the surrounding gravel fill. As the user inputs various parameters, a diagram of the tank displays the updated specifications.

The application is available in Poland.

The linear drainage application was created in cooperation with HAURATON, a leading European manufacturer of rainwater management systems. The linear drainage application is an intuitive tool for designers, enabling the selection of linear drainage in 3 simple steps.

The selection is based on the indicated drainage location and its required hydraulic capacity, determined by the catchment parameters entered by the user. In addition, the application’s connection to access to local rainfall data guarantees reliable results, which is essential for the effective design of stormwater management systems.

The application available in Poland, Hungary and Germany.

The Filter Substrate Drainage Channel Calculator was developed in collaboration with HAURATON, one of Europe’s leading manufacturers of stormwater management systems. It provides civil engineers, drainage designers, and landscape architects with an intuitive tool for designing decentralized stormwater treatment systems.

Selecting the appropriate filter substrate drainage channel requires only a few steps. The design is based on the selected calculation method (full-flow or partial-flow treatment), the application type, the load class, and the connected catchment area. Based on these inputs, the application automatically determines the hydraulic requirements and recommends suitable drainage channel systems.

The tool takes into account relevant technical standards, including DWA-A 102 and DIBt approvals, ensuring that the proposed solutions comply with current engineering and regulatory requirements.

The application available in Germany.

The Rain Garden Selection Tool, developed by the experts at RetencjaPL, enables users to quickly assess the potential for managing stormwater through the implementation of rain gardens. The tool helps identify the solution best suited to the site’s soil and groundwater conditions, available space, and catchment characteristics.

In just a few simple steps, users can determine whether a rain garden is suitable for a given location and select the most appropriate solution from the following options:

• Container rain garden
• Rain garden in permeable soil
• Rain garden in impermeable soil

The analysis considers key design parameters, including soil infiltration capacity, groundwater level, site constraints, and local rainfall conditions. Based on these inputs, the tool provides a recommendation that supports sustainable stormwater management and the design of blue-green infrastructure.

The application is available in Poland.

The application for selecting flow regulators was developed by experts from RetencjaPL. The purpose of this tool is to quickly and precisely select flow regulators for rainwater drainage systems.

Their main application is to provide output values ​​of outflow resulting from the current value of the output column height, as well as to stabilize flows before and after sources whose activities depend on the results (pumping stations, pre-treatment devices).

In three simple steps, the application enables efficient selection of a device tailored to the project needs based on three entered parameters: outflow rate Q [l/s], damming height H [m], and drainage pipe diameter DN [mm].

The application is available in Poland, Hungary, Sweden and Romania.

The Wavin gravity system selection application allows for quick and easy selection of the required number of roof inlets for gravity roof drainage and selection of drainage system diameters from HDPE, AS+ and SiTech systems. The selection can be done automatically or manually.

In automatic selection, apart from selecting parameters such as the rainfall model or runoff coefficient, you only need to provide the type of pipe material and the total roof surface area to be drained. The application will determine the minimum required number of roof inlets and select the drainage system diameters.

In manual selection, apart from selecting parameters such as the rainfall model or type of pipe material and pipe slope, you need to provide the area per inlet, specify the runoff coefficient (may be different for each surface/inlet) and enter all installation sections and inlets, mapping the layout according to the design or assumptions.

The application is available in Poland.

The roof drainage system selection application was created in cooperation with Wavin Polska. It allows you to select a vacuum system for flat roof drainage.

For a given roof surface area, rainfall parameters and installation layout, the application allows you to select the number of inlets, list the number of pipes divided into diameters and the total amount of rainwater at the outlet from the installation. After selecting the number of inlets, you can obtain diagrams of the vacuum system layout for flat roof drainage.

After selecting, you can download drawings, catalog cards and declarations regarding the Wavin QuickStream vacuum flat roof drainage system.

The application is available in Poland.

The gutter system selection application was created thanks to cooperation with the leader in the production of plastic installation systems, Wavin Polska.

It allows you to select gutter systems depending on the surface and configuration of the roof. The size of the system is selected to effectively secure the collection of rain with an intensity of at least 75 mm / h. It is possible to define a single-pitch, double-pitched, hipped or multi-pitched roof.

Depending on the surface, gutter installation height and planned additional elements, such as cleaners, rain catchers, inlets, we receive a personalized list of gutter system elements.

The application is available in Poland.

The green roof selection application allows for a complete selection of a green roof in a few minutes, along with a set of required documents and a ready-made solution specification containing a description and the possibility of direct attachment to the construction project.

Greening the roof over a garage, a carport or a residential house, giving the possibility of using it as a terrace – this option is offered to us by green roofs. The application is addressed to architects and designers involved in planning green roofs and managing rainwater.

In a few simple steps, the application allows you to design a green roof layout taking into account the required rainwater retention or thickness. The designer receives a clear report with a graphical representation of the layers and technical data, such as the amount of collected rainwater, limiting surface runoff, the mass of the system and the thickness of the layers.

The application is available in Poland.

The GRP gravity pipe selection application was created in cooperation with Amiblu Poland Sp. z o.o., a renowned manufacturer and supplier of GRP pipe systems. This tool allows you to quickly determine the appropriate hydraulic and strength parameters for gravity pipes.

The application provides the user with key information regarding the optimal solution, including pipe diameter, medium flow rate and pipe filling level.

Hydraulic calculations are based on the Colebrook-White formula, and the strength analysis is carried out in accordance with the ATV127 guidelines, which are German standards for pipes installed in open trenches or trenchless methods. The application significantly streamlines the work process and allows you to significantly save time required to perform the necessary calculations related to the selection of gravity pipes.

The application is available in Poland.

The application for road and railway culvert lighting, developed in collaboration with Amiblu, a leading producer and supplier of glass-fiber-reinforced polyester (GRP) pipe systems in Europe, aligns with the ministerial guideline WR-M-12.

This tool allows for the quick selection of the diameter of hydraulic culverts made from pipes manufactured using Hobas and/or Flowtite technology, based on parameters specified by the user. This methodology is applied in calculating the lighting of bridges and sizing hydraulic culverts on natural and artificial watercourses.

After performing the calculations, the user receives the dimensions of the hydraulic culvert, considering the selected parameters and the hydraulic conditions for its operation.

The application is available in Poland.

The Road and Paved Surface Drainage application using ACO Combipoint point inlets was developed by ACO to assist designers and contractors in the efficient selection of drainage systems. This tool enables the calculation of the required number of ACO Combipoint point inlets, including capacity calculations and the hydraulic characteristics of different types of drains (e.g., curbside, swale drains, etc.). Such components are crucial for managing stormwater in urbanized areas.

With this tool, users can not only choose the appropriate inlet but also receive recommendations regarding their placement within specific catchment areas, dimensions, and the optimal configuration of the system. The application ensures compatibility with current standards and regulations, which is vital for the execution of infrastructure projects.

This tool is indispensable in planning an effective drainage system, which translates to increased safety and durability of road infrastructure.

The application is available in Poland.

The sawage pumping station application was developed in cooperation with Ecol – Unicon, which supplies a wide range of products that play a key role in effective water resource management.

The calculator allows you to select a complete sewage pumping station in a few simple steps, i.e.: housing, module, pumps, hydraulic system and control. It also takes into account the parameters of the pressure pipes and the possibility of selecting the appropriate pressure pipeline.

After entering the data, the system generates a detailed report that can be downloaded in PDF format and used as an attachment to the project.

The application is available in Polan and Romania. 

The pump selection application is a tool that allows for flexible and fast selection of pumps for storm sewers, sanitary sewers, combined sewers and flood protection.

The application allows for fast and optimized pump selection in four simple steps, setting the pump operating point and preselecting the best solutions for the pump and its control system within 2-3 minutes from 1000 different pumps and 180 available control systems.

The application is available in Poland.

The application used to select pumping stations was developed in cooperation with Ecol-Unicon. After entering the investment data, the user is able to choose the optimal solution in just 4 steps without having to wait for feedback.

The selection is done automatically after entering the appropriate parameters. After entering all the data correctly, the user receives a proposal for three pumping stations. They have the parameters closest to those introduced in the previous steps. The program has implemented security measures that prevent the creation of a project. If the user enters grossly incorrect information, a hint will appear on what elements should be paid attention to during corrections. The tool also presents information on the type of pump, power, size and throughput of the installation.

The application allows you to generate the calculation result in pdf form. and downloading the document to an external drive. It is a complete document containing all the necessary information necessary to undertake the investment. Thanks to this, the document can be attached to the inquiry addressed to contractors who are competent to build the facility.

The application is available in Poland and Sweden.

The mechanical screen selection application was developed in cooperation with PRODEKO-EŁK Sp. z o.o. (ESMIL Group), a world leader in the production of sewage treatment equipment and a supplier of comprehensive technologies in the field of water purification and treatment for various industries.

The proposed application aims to enable quick selection of mechanical screens, which are universal devices used to capture solid contaminants (screenings) from flowing sewage and are used at the first stage of the treatment process.

In a few simple steps, the application will ensure the correct selection of the device in terms of operating parameters and will perform hydraulic calculations. Its aim is to propose the most advantageous solution (screens) that will meet the user’s expectations.

The application is available in Poland.

The Oil Separator application was developed in collaboration with HAURATON, a renowned European manufacturer of comprehensive stormwater management systems. This tool provides an intuitive solution for designers, enabling the selection of light liquid separators according to the PN-EN 858 standard in three simple steps.

The selection process is based on determining the separator’s location and the required hydraulic capacity (both nominal and maximum), which are established based on the catchment parameters entered by the user. Additionally, the application’s integration with PANDa data ensures reliable results, which is crucial for the effective design of stormwater management systems.

The application is available in Poland.

The application for selecting pre-treatment systems was developed in cooperation with Ecol-Unicon. This specialist tool allows you to select the optimal solution for pre-treatment systems. After entering the appropriate data, the calculator automatically selects a device with the right parameters.

Independent calculations allow you to save time and choose the most appropriate device, for example, a separator alone or another pre-treatment system, such as a separator plus settling tank.

The user can also download other documents, such as drawings or catalogs of individual devices. Using the form, the user can request a quote for the selected solution by contacting the manufacturer directly.

The application is available in Poland and Romania. 

The ACO Grease Separator Selection application is designed to simplify the process of selecting the appropriate grease separator, whether free-standing or designed for installation in the ground, according to the needs of industrial kitchens, restaurants, or meat processing plants. The tool allows for the efficient selection of the device based on several key parameters: kitchen equipment, the number of meals prepared, and the scale of meat production.

Thanks to collaboration with ACO, a leader in drainage system production, the application enables precise determination of the separator’s capacity and efficiency requirements, ensuring compliance with local regulations regarding the discharge of fats and oils. After entering specific data related to their operations, users receive a detailed diagram and the recommended separator’s parameters, such as its capacity, dimensions, and recommended placement.

This tool is an invaluable aid in designing, minimizing the risk of blockages, and contributing to environmental protection, while also reducing the time needed for necessary analyses and calculations. The application is user-friendly and tailored to the needs of its users. The selection process is conducted in accordance with the PN-EN 1825-2 standard: Grease Separators – Part 2: Selection of Nominal Sizes, Installation, Operation, and Maintenance, although more experienced users have the option to make deviations from the standard.

The application is available in Poland.

The Stormwater Monitoring Device Selection Tool was developed in collaboration with PM Ecology. It enables engineers and designers to quickly select monitoring systems for measuring rainfall, water level, flow, and water quality in stormwater infrastructure, including drainage networks, retention tanks, underground storage systems, open channels, and other stormwater facilities.

In just a few steps, users can identify the most suitable monitoring devices based on the monitoring objective, installation conditions, and required measurement range. The application includes solutions based on advanced radar technology and high-performance online water quality sensors, ensuring reliable measurements even under demanding environmental conditions.

The application supports the selection of devices for four key monitoring areas:

Water Level Monitoring – Radar-based water level monitoring systems designed to measure the filling level of channels and storage tanks, evaluate available storage capacity, and determine the effective flow cross-sectional area.

Flow Monitoring – Radar flow monitoring systems capable of measuring instantaneous flow rate, total flow volume, water level, effective flow cross-sectional area, and flow velocity profiles.

Water Quality Monitoring – Online water quality monitoring systems equipped with advanced multiparameter sensors for continuous measurement of water quality parameters, trend analysis, and evaluation of relationships between individual water quality indicators.

Rainfall Monitoring- Professional rainfall monitoring systems using rain gauges and data loggers to measure rainfall depth, intensity, and temporal distribution in real time. The collected data can be used for hydrological analyses, runoff modelling, and stormwater infrastructure management.

Upon completion of the selection process, the application provides a recommended monitoring solution together with its key technical specifications, installation requirements, power supply options, and available data transmission methods.

The results can be saved for future reference or downloaded as a comprehensive PDF report containing the recommended solutions.

The application for liner methods in gravity sewer renovation was developed in collaboration with the leading manufacturer of these materials, POliner Sp. z o.o. This tool supports designers and investors planning the renovation of gravity sewer pipes using the most popular trenchless technology – CIPP (Cured-In-Place Pipe), for sanitary, stormwater, and combined sewers, with circular and egg-shaped cross-sections.

The application allows for the estimation of the required thicknesses of felt and fiberglass liners in a few simple steps, based on the technical condition of the canal, its depth, and the groundwater level. The application also shows the differences in liner thicknesses according to the criterion of circumferential stiffness and DWA guidelines.

Another advantage of the application is its ability to show estimated hydraulic gains from the renovation – an increase in the canal’s capacity, allowing for the connection of additional users or the drainage of additional areas.

The application is available in Poland.

The operating cost application, whose authors are practitioners working in three companies, Veolia, DSConsulting and RetencjaPL, with comprehensive knowledge, experience and data in the field of shaping, using and financing stormwater infrastructure, allows for a quick and, at the same time, possibly precise calculation of the costs of maintaining drainage and water retention systems rainwater along with the calculation of the rate of potential charges for rainwater.

This is the first application addressed to managers of rainwater drainage systems: waterworks, municipal companies, city authorities interested in making the conditions for maintaining rainwater systems more realistic or introducing charges for rainwater and assessing the conditions in which this process should be carried out.

The application available in Poland.