Man Using Measuring Tape in Factory Setting

Complete solutions for all types of water.

Water treatment

HQ-Line

HQ-Line water treatments

At HQ-Line, we offer tailor-made water treatment systems for domestic, industrial, and agricultural use. Whether you use rainwater, borehole water, surface water, tap water or process water, we ensure your water is treated optimally based on your water analysis.

  • Removal of various chemical elements – iron, calcium, manganese, ammonium, nitrate, sulphate, heavy metals, etc.

  • Filtration – For organic matter, sand, suspended matter and colour

  • Deodorisation and discolouration – For fresh, clear, and odour-free water

  • Rainwater treatment – Treatment with filtration, UV decontamination, and/or disinfectants

De-ironing

Iron in groundwater causes rust and blockages. A de-ironing system prevents this by filtering the iron out.

HQ-OXY and ION De-ironing

Iron is a common problem in groundwater extraction. Once iron comes into contact with oxygen, it oxidises and forms rust deposits on crops, ornamental plants, patios, and other surfaces. This not only causes unsightly discolouration but can also lead to blockages in pipes, taps, sprinklers, irrigation systems, and even drinking nipples in poultry farming.
In addition, excessive iron levels can give water an unpleasant smell and taste, and at high concentrations it can even be harmful to humans and animals.

  • Prevents rust deposits on surfaces and plants

  • Protects pipes and installations from blockages

  • Improves the smell and taste of water

  • Essential for agriculture and poultry farming

  • Capacities from 1m3/hr to 50m3/hr

Tailored solutions

At HQ-Line, we offer tailored solutions based on a water analysis, so you always get the right de-ironing system for your specific situation.

Water analysis

Want to know which de-ironing solution is right for your water? Contact us for a tailor-made analysis and advice.

HQ de-ironing overview

Information/request a quote

Descaling

Protect your appliances and improve your water quality

Descaling

Calcareous water can cause white deposits on plumbing fixtures, increase energy consumption, and shorten the lifespan of hot-water appliances and taps. By descaling your water, you can prevent these problems and enjoy softer water with numerous benefits:

  • No limescale – Protects pipes, taps and household appliances

  • Lower energy consumption – Heating systems operate more efficiently

  • Better for skin and hair – No dehydration caused by hard water

  • Softer laundry – Clothes stay soft and last longer

  • Better-tasting drinking water

Descaling overview

HQ-SenticSoft Home

Descalers for tap water, comfort for your whole house

HQ-SenticSoft water softeners professionally soften hard and untreated water, helping your household appliances operate optimally and last longer. Lime, calcium, and magnesium in hard water can cause damage and reduce the efficiency of your appliances.

  • Protects household appliances – Prevents limescale in boilers, washing machines, dishwashers, Quookers, taps and shower heads
  • Improves efficiency – Appliances run more economically and use less energy
  • Reduces maintenance costs – Extends equipment lifespan and avoids expensive repairs
  • Less limescale – No white marks on tableware, shower screens, or car paint
  • Gentler on skin and clothes – Reduces skin irritation and extends the life of textiles

Hard water can cause staining on glassware, slower heating of water in boilers and kettles, and leaking taps due to limescale build-up. With HQ-SenticSoft water softeners, you enjoy soft, limescale-free water and effectively prevent these problems.

Deodorising

Deodorising techniques tailored to the source and composition of your water

Deodorising

Unpleasant odours in water can have several causes and therefore require a targeted approach. At HQ-Line, we offer a range of deodorising techniques tailored to the source and composition of your water.

For groundwater with a sulphur (rotten egg) smell, an activated carbon filter is often less effective, whereas for rainwater it can be an excellent solution. That is why we first analyse the cause of the odour and then apply the appropriate treatment.

Our odour-removal systems can also be combined with other water treatments, such as de-ironing and discolouration, allowing multiple water problems to be solved in a single step.

  • Tailor-made solutions for groundwater and rainwater

  • Efficient removal of sulphur odours and other odour contaminants

  • Combination with de-ironing, discolouration, and filtration possible

  • Durable, low-maintenance systems

Filtration

Efficient water filtration for every application

Filtration

At HQ-Line, we offer high-quality filtration systems that ensure clear and pure water, suitable for both domestic and industrial use. Our filters remove suspended matter, organic matter, and impurities from water, ensuring quality and safety.

  • High capacity – Suitable for large volumes of water across a wide range of applications

  • Automatic and adjustable rinsing times – Ensures reliable operation without the need for constant supervision

  • Long service life and minimal maintenance – Durable design with straightforward operation

  • Manual rinsing option – Allows the rinsing process to be started manually when required

  • Various filter media and fineness levels – Filtration down to 1 micron (1 µm), with optional self-disinfecting glass media

  • Compact and efficient design – Ideal for various installations, even where space is limited

  • Water-saving flushing system – Engineered for sustainable and environmentally friendly operation

Optimal performance through proper maintenance

Regular filter flushing is recommended to maintain efficiency and longevity. Thanks to automatic and adjustable rinsing cycles, the filter maintains optimal performance without unnecessary water consumption.

Filtration solutions

Want to know which filtration solution best suits your situation? Contact us for tailored advice!

Overview filtration

Sand filtration is one of the most reliable methods for removing organic suspended matter and heavy metals from water.

As the water passes through a specially formulated bed of fine sand, these contaminants are trapped, leaving the water clear and clean. his process not only improves water quality but also extends the lifespan of subsequent treatment systems, such as UV decontamination units or activated carbon filters.

  • Effective removal of organic suspended matter and heavy metals
  • Improved water clarity and quality
  • Low-maintenance and durable
  • Suitable for rainwater, groundwater, borehole water, and surface water

Activated Carbon Filtration: Powerful Water Treatment for Smell, Colour and Taste

Activated carbon is one of the most effective filter media for water treatment. Thanks to its exceptionally large specific surface area, activated carbon can adsorb unwanted substances from water, effectively removing odour, colour, and taste issues. With more than 6 million square metres of surface area per 500 grams of carbon, activated carbon provides a highly sustainable and efficient solution for water treatment.

How does activated carbon work?

Activated carbon works through adsorption, a process in which atoms, ions or molecules adhere to the surface of the filter medium. This effectively removes harmful organic substances, chlorine compounds, pesticides, and mineral oils from the water.

  • Water treatment – Removes odour, colour, taste and harmful substances from drinking and process water
  • Industrial filtration – Removes organic contaminants and polishing residues
  • Removal of chemical compounds – including chlorine, pesticides, and mineral oils

PH correction

PH correction solutions that balance your water

PH correction

Balanced water pH is crucial for the optimal performance of your domestic and industrial appliances. Overly acidic water (pH < 7) is aggressive and can damage metal pipes and appliances, leading to corrosion and increased metal concentrations in the water. At HQ-Line, we offer pH correction solutions that balance and protect the water against these harmful effects.

  • Protection of pipes and installations – Prevents corrosion and metal deposits

  • Safer and healthier water – Avoids elevated metal concentrations in drinking and process water

  • Optimal water quality – Suitable for a wide range of domestic, agricultural, and industrial applications

  • Drinking and process water – pH increase prevents corrosion in pipes and appliances

  • Agriculture – Lowering the pH in water for chickens and pigs helps reduce antibiotics use and supports good animal health

  • Swimming pools – Our systems and liquids ensure stable pH levels and optimal bathing water

Reverse osmosis

Fully compliant with drinking water regulations

Reverse osmosis

Our HQ-RO (reverse osmosis) systems provide an advanced solution for water treatment and desalinating softened drinking water, fully compliant with drinking water regulations. The result is chlorine-free water without unwanted substances.

To ensure maximum efficiency, each HQ-RO installation is preceded by a descaler to prevent limescale formation in the membrane filters. During the process, water is forced at high pressure through an ultra-fine membrane, which removes suspended matter, organic matter, bacteria, viruses, and germs. Only pure H₂O molecules pass through, resulting in high-quality osmosis water.

  • Removes up to 97% of all minerals and impurities

  • Constant water quality with no streaks or residue

  • Efficient system: 75% recovery, 25% waste stream

  • Options available for higher recovery rates and mineral retention

  • Boiler feed water – Prevents scaling and corrosion in industrial boilers

  • Carwashes and window washing – Leaves no streaks or stains

  • Washing lines and laundries – Provides clean, efficient rinse water

  • Manufacturing industry – Ideal for misting systems, air conditioners, and steam cookers

  • Pharmaceutical and textile industries – Produces purified water free of contaminants

  • Agriculture and fisheries – Clean, controlled water for irrigation and fish farming

  • Greywater recycling – New! Sustainable reuse options for water conservation

Reverse osmosis overview

Decontamination – Cleaning

Decontamination and cleaning of your water

Decontamination – Cleaning

Disinfecting and cleaning your water can be advisable in many situations. Water quality can deteriorate quickly due to various factors, such as:

  • long distribution distances

  • high temperatures

  • low flow rates

  • storage of water in a (break) tank

These conditions often allow bacterial counts to rise rapidly, increasing the risk of contamination. The formation of biofilm in pipes or storage tanks can quickly degrade water quality, with potentially serious consequences for users.

Decontamination and cleaning overview

advanced UVC decontamination solutions

At HQ-Line, we offer advanced UVC decontamination solutions that clean your water in a highly effective and safe way. UVC lamps eliminate harmful micro-organisms such as bacteria, viruses, and fungi without the use of chemicals. This makes UVC decontamination an environmentally friendly and cost-effective method for producing clean and safe water.

Our UV lamps from the UV series are ideal for drinking water treatment, industrial applications, and water treatment without chemical exposure.

  • Continuous decontamination of drinking and process water
  • No chemical additives – environmentally friendly and safe
  • Low operating costs
  • Lamp lifespan of 9,000 hours
  • 2-year system warranty
  • Drinking water treatment – Ensures safe and microbiologically pure water
  • Rain and groundwater decontamination – Suitable for domestic and industrial use
  • Pools and ponds – Prevents bacterial growth and keeps water clear

Liquid, oxidising cleaner and disinfectant

DenuClean Ox is a liquid, oxidising cleaner and disinfectant specially developed for cleaning surfaces and drinking water systems in stables and greenhouses during vacancy. This broad-spectrum product removes organic contaminants, limescale, bacteria, iron and manganese, keeping water pipes and drinking systems optimally clean and fully functional.

  • Effective biofilm removal – Prevents clogging and bacterial growth
  • Removes limescale, iron and manganese – Improves water flow
  • Suitable for professional use – Ideal for livestock farms, greenhouses, and water supply systems
  • Optimal water quality – Supports the effectiveness of vaccinations and medication administered via drinking water

Specially developed dosing system for DenuClean Ox

For precise and constant dosing of hydrogen peroxide and DenuClean Ox, we have developed a self-venting dosing pump (art. no. 140234). This innovative system prevents oxygen formation in the pump, guarantees stable dosing, and increases the reliability of the cleaning process.

Resin cleaner for iron and limescale

HQ-Resin Clean is a powerful resin cleaner specially developed for HQ de-ironing and descaling systems. It effectively dissolves iron and lime deposits and keeps the resins in the pressure tanks functioning optimally.

Thanks to its highly concentrated phosphoric acid blend, HQ-Resin Clean not only removes contamination, but also bacteria that can accumulate in the system. This results in better water quality and a more efficient flushing process.

  • Effective removal of iron and limescale deposits
  • Cleans and maintains resins, rinse heads, and salt containers
  • Easy to use – Simply add to the salt bin periodically
  • Odourless and safe to apply
  • Extends the lifespan and improves the performance of your water treatment system

HQ-Resin Clean keeps your de-ironing and descaling systems in top condition, ensuring an optimal flushing process and constantly clean water.