Water Treatment Solution

Water Treatment Solution


Water is critical in all industries. 

Not only is water an increasing cost, but its quality can have a huge impact on some of your most energy intensive processes. 

Culligan has over 75 years of experience as a global provider of industrial water treatment solutions. 

Covering a wide range of industries our references include the food and beverage, oil & gas, energy & power, healthcare/ hospitals/ bio-pharmaceutical, and manufacturing sectors.

Industrial Water Treatment Applications

Raw Water Pre-Treatment 

Wherever your raw water comes from; Well, borehole, surface water, river water, sea water, recycled waste streams or potable water from the municipal supply, good pre-treatment is essential to protect your downstream processes and save costs. 

Raw water often contains a wide range of water contaminants such as suspended solids, organics, hardness, heavy metals such as manganese, iron, lead and arsenic. All of which must be removed or reduced before introducing the water into your processes. 

Culligan offers a number of technologies designed specifically to treat raw rater including media filtration, ultrafiltration, reverse osmosis, chemical dosing and disinfection systems. 

Discover Culligan's Industrial Products 


Water Filtration

Self-cleaning filters 

Self-cleaning filters remove suspended solids from water without replacing filter cartridges. Available in fully automatic or semi-automatic versions with different capacities and filtration levels. 


Mechanical filters are a highly flexible, versatile and economical solution for addressing small scale water filtration problems. Most commonly used as a barrier against suspended solids for protecting sensitive equipment 

Media Filters for Commercial Applications 

Suited for light commercial applications and pre-treatment for softeners and boilers up to 8m3/hr, Culligan's commercial filters are designed to reduce turbidity from water, adsorb odors, neutralize acidity and reduce heavy metals. 

Media Filters for Industrial & Municipal 

Fully automatic heavy duty pressure filters manufactured entirely by Culligan in our factories from high grade carbon steel, with food-grade epoxy resin internal linings. With a modular design that allows units to be combined for high flows.

Physical Water Conditioners Ultrafiltration

Available in 2 models, ClearScale andClearScale Plus, Culligan UK's WRAS range of physical water conditioners can prevent or reduce the formation of hard (lime) scale by use of magnetic fields. By using magnetic rather than electromagnetic fields  a power source is not required. 

The Clearscale Plus range of physical water conditioners possess a  two stage magnetic and catalytic treatment system. 

Ultrafiltration (UF) is a process of separation under pressure, able to separate insoluble particles form the water. 

Ultrafiltration systems are ideal for Ground water and surface water treatment, as well as Seawater desalination pretreatment applications. 

Culligan uses robust outside-in PVDF fiber technology hollow fiber membranes benefit that provide high clean-ability, low chemical consumption, high recovery, and a superior combination of mechanical properties and chemical resistance.

Deionization – Ion Exchange Water Treatment Systems

Continuous Electro-deionization (CEDI) 

CEDI process reduces ions from water using electricity, resin and membranes, decreasing the need for chemicals. CEDI is used as a polishing process to further deionise Reverse Osmosis permeate to multi megaohm-cm quality water. Models are available for up to 13m3/hr flow rate. 

Automatic Deionization 

Fully automated demineralisation units designed for flows up to 40m3/hr. Choose from a flexible configuration of weak base or strong base resin tanks. Deyolit series deionizers are equiped with a control system designed to monitor the process & automatically initiate regeneration when water quality deteriorates to a pre-determined limit. 

Portable Exchange Deionizers (PEDI) 

For installations where regeneration systems are not appropriate, replaceable portable exchange deionisers (PEDI) are an great solution. Suitable for a wide range of flow rates (up to 500 L/hr), Culligan PEDI systems reduce both positively and negatively charged ions from water by means of ion exchange resins. When your PEDI tanks are exhausted, a Culligan service technician can replace your ion exchange tanks at your convenience. This type of system can reduce capital costs as well as handling of regenerate chemicals such as caustic and acids.

Medical & Pharmaceutical Reverse Osmosis

(Single Dialysis System) 

The SDS (Single Dialysis System) produces up to 80 l/h of reverse osmosis quality water for use in haemodialysis. The unit is ideal for applications such as dialysis in a patient's home, use by emergency services, dialysis in acute cases and for transplant patients. Designed to be compact and easy to use, the equipment is on wheels to aid with mobility. 

RO2 Dialysis RO 

For flows of up to 3600 l/h, the RO2 Bi-Osmosis system is ideal for treating water for whole-ward haemoldialysis applications. Water passes through 2 reverse osmosis systems to produce the highest quality water, but in the unlikely event of a problem the system will automatically move to single pass treatment thereby ensuring patient safety at all times 

Pharma RO System

The PHARMA unit utilises reverse osmosis and demineralisation technologies to produce up to 160 L/hr of ultrapure water. Designed to satisfy the most demanding pharmaceutical type applications, the pharma water treatment unit is an ideal choice for industries requiring reliable ultra-pure water production. 

Dual Box 

Ideal for fast installations in areas with limited space, the Dual Box system includes pre-treatment and a PLC controlled RO2 Bi-osmosis system within a satin-finish steel enclosure. To make operational the user simply has to connect to the inlet, outlet and water drain points and provide power to the unit.

Disinfection & UV Systems Instrumentation & Control Systems

Culligan can provide a wide range of disinfection solutions including:
  • Chlorine Disinfection (Chlorine Dioxide, Chlorine & Chem Oxide)
  • UV Sterilisation
  • Ozone
  • pH Meters
  • REDOX Meters
  • Chlorine Meters
  • Hardness Meters
  • Conductivity Meters
  • Turbidity Meters
  • Dosage Monitoring
  • Blowdown Control
Waste Water .. 

Utilising intense aeration and a residence time of 20 hours the Culligan Duplox unit is capable of operating in batch cycle or continuous flow operation. With units suitable for treating sewage waste for up to 250 person population equivalents, the Duplox system is a simple easy to install and operate waste water system. 


The Culligan Omnifiltration system consists of two filter units arranged in series, controlled by 8 x diaphragm valves. Both Operation and backwashing and is fully automated by means of a pilot valve controlled electronic programmer. Models are available for flows up to 68 m3/hr and a maximum operating pressure of 7 bar

Mobile & Containerised Water Treatment Systems


Mobile & Containerised Treatment 

Thanks to the compact nature of the Culligan water treatment technology (pressure filtration, softening, reverse osmosis etc) Culligan have pioneered containerising water treatment systems to allow for rapid deployment, installation, and mobility. 

Ideal for remote or temporary locations such as construction camps or remote communities, these units are designed to operate in extremes of temperature and provide full potabilisation of water from a wide variety of feed sources such as wells, sea water, and river water. 

Dive into a dream with a Culligan Swimming Pool 

Since that first pool in Italy in 1961 Culligan have provided swimming pool solutions for customers around the world and have made luxury swimming pools for some of Italy's most famous celebrities and sports stars. 

At Culligan we have everything you need to turn your swimming-pool dream into a reality. Culligan have installed thousands of swimming pool systems and we are experts in designing systems for all pool types: 

Culligan solutions for Swimming Pools and Spas include: 

Swimming Pool Filtration Systems 

Designed to clean the water of dirt and other fine debris, Culligan Swimming Pool Filters can also can help reduce the growth of bacteria. A well designed filtration system will help ensure crystal clear water for your pool. 

Culligan are world leaders in advanced filtration technologies and have the widest range of swimming pool filters available; ranging from simple cartridge filters to sand and multimedia filters, as well as the Culligan exclusive self-cleaning Diatomaceous Earth (DE) filter. Diatomaceous Earth filtration is simply the best swimming pool filtration technology available on the market today. 

In addition to swimming pool filtration equipment Culligan also provide a full range of complimentary swimming pool chemical solutions. 

Water Disinfection Systems 

Disinfectants are used to kill any remaining microorganisms in the water; it is a key component of the water treatment process as many bacteria can be dangerous for human health. There are more ways to disinfect your pool water than you may realize: 

Chlorine & Bromine disinfection 

the widest known and most common solution to pool water disinfection. Chlorine and bromine is extremely effective at killing microorganisms, but needs careful control. All Culligan chlorine treatment systems are designed with ease of use and safety of the pool user in mind. 

Ozone disinfection 

is a technology that is growing in popularity, particularly in competition pools for swimming athletes. Ozone uses oxygen atoms to destroy microorganisms through oxidation. Ozone has a number of advantages over traditional chlorine and bromine based disinfection systems. Ozone not only disinfects the water it also leaves pool water clear of the chemical residue that can cause haze in the water, chemical odors, and can cause skin and eye irritation. 


By utilizing UV light wavelengths bacteria are deactivated and rendered harmless. This type of technology shares many of the benefits of ozone systems but does not require dosing controls as no chemicals are involved.  

Instrumentation and Monitoring systems 

Culligan offers a range of advanced, reliable systems which monitor and analyse key parameters of your pool such as pH and can adjust chemical dosing levels automatically. Our range of instrumentation and monitoring equipment is ideal for running residential, private or public swimming pools. 

Designed to be easy to run and programme, both the entry level units and the more advanced multifunctional equipment are intuitive to set up and programme. To aid with simple management some units are available with remote monitoring and management via the internet capabilities. 

Pool Filtration Pumps 

The swimming pool pump is the heart of a swimming pool water treatment system. 

Water is pumped from the pool, through the filtering and chemical treatment systems and then back into the pool on a continuous basis, ensuring the pool is kept free of dirt, debris and bacteria. 

Culligan's range of swimming pumps are suitable for all sizes and types of pool, from smaller private pools to the largest Olympic sized swimming pools. 

Whirpools and Accessories for Swimming Pools 

A beautiful swimming pool needs accessories, some are vital for the pool to work properly, and others simply make your swimming pool truly special.

Culligan offer a wide range of accessories for distributing and recirculating water, outles, cleaning and lighting your pool, and many other items to help improve the enjoyment of your swimming pool. 

We have always been dedicated to pampering our clients and have a range of hydromassage systems and accessories for both professional and home or private use, all of which use the latest technology. 

We can offer whirlpools featuring special inlets with swivel jets which allow you to adjust the flow of the water jets. All our whirlpools can be controlled directly from the swimming pool, thanks to special waterproof buttons with 'soft touch' technology that meets all current safety regulations. 

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