Fluid Dynamics

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Fluid Dynamics

Chemical-free, scientifically proven & cost-effective limescale treatment. Made in the UK since 1973.

We're the world's leading manufacturer of water conditioners for limescale treatment. We've pioneered scientifically proven, environmentally conscious limescale solutions since 1973, and the journey is just beginning. From residential applications to bespoke industry solutions, we help clients save money - and the planet - with our clean and green water treatment.

07/09/2026

Limescale costs more than you think.

In hard water areas, scale deposits build up inside pipes, boilers, heating coils, pumps, appliances and machinery.

That build-up acts as an insulator, forcing water-using equipment to work harder, use more energy and cost more to run.

Even 1mm of limescale can increase the energy input required by a boiler by 7%. A boiler using untreated hard water could consume 20 to 30% more energy.

The cost does not stop there.

Limescale can also:
• reduce water flow
• increase cleaning and maintenance
• damage heating elements and pipework
• shorten equipment lifespan
• increase downtime and replacement costs
• create areas where bacteria, including legionella, can accumulate

For homes, commercial buildings and industrial sites, limescale is more than an aesthetic issue. It is a running cost, a maintenance burden and an energy efficiency problem.

Fluid Dynamics water conditioners are designed to reduce limescale without salt, chemicals, power or ongoing maintenance, helping protect systems while supporting lower energy use.

27/08/2026

Water conditioning for challenging water conditions.

Magcat is selected for systems where water chemistry presents additional challenges, such as iron fouling, high mineral saturation, or variable flow conditions. It’s commonly used in commercial and industrial installations where standard conditioning alone may not be sufficient.

An enhanced option for more demanding and less predictable system conditions.

21/08/2026

Reliable process cooling is essential in plastics manufacturing.

At a PLAPASA production facility in Ecuador, scale formation and biological fouling within the cooling system were beginning to impact efficiency, increasing maintenance requirements and threatening long-term system performance.

To address the challenge, two Colloid-a-tron water conditioners were installed—one protecting the mould cooling circuit and the other treating the cooling tower supply serving the heat exchangers.

The results demonstrated the long-term benefits of effective water conditioning:

• Improved water clarity and progressive reduction in algae growth
• Reduced scale formation within cooling circuits
• Maintained flow capacity through cooling lines
• Improved cooling performance and process stability
• Clean heat exchangers with no significant scale accumulation
• Extended maintenance intervals and reduced downtime
• More than 15 years of continuous operation without maintenance

The installation continues to deliver value today, demonstrating how chemical-free scale control can support efficiency, reliability, and reduced maintenance in demanding industrial environments.

Read the full case study:

https://fdiltd.com/project/improving-cooling-efficiency-in-industrial-plastics-manufacturing/

06/08/2026

Salt-based systems carry a heavy carbon cost - from salt production and transport to regeneration cycles and wastewater disposal.

Water conditioners remove those impacts entirely.

The result is up to a 95% reduction in carbon footprint, achieved through chemical-free operation, zero consumables, and long service life.

Better for systems. Better for sustainability targets.

23/07/2026

Heavy-duty water conditioning for industrial infrastructure.

iMagcat is designed for large-scale industrial and infrastructure applications with high flow rates and continuous operation. It’s typically used in demanding environments where reliability and longevity are critical.

Engineered for the most challenging installations.

16/07/2026

Cotto Tiles faced a complex cooling system challenge where both scale and oil contamination made treatment difficult.

As part of the Thai Cement group, the plant relies on mould machines cooled by a recirculating water system. The circuit suffered from silica and calcium deposits, made worse by heavy oil contamination. Various chemical and non-chemical treatments had been tried previously, but none were successful.

A Magcat water conditioner was installed on the cooling circuit, sized to manage the full system flow and target both new and existing scale.

After six months, the results showed:

Scale deposition stopped completely.
70% of existing scale was removed.
Cooling efficiency improved across the machines.
Energy and maintenance costs were lowered.
Continuous protection was achieved without the need for chemicals.
This case highlights how Magcat performs in demanding ceramics manufacturing environments where conventional methods fail.

Read the full case study: https://fdiltd.com/project/case-study-magcat-cotto-tiles/

08/07/2026

Meet Debbie Treadwell, our Finance Officer. She's the diligent force managing our company accounts, invoicing, and payroll. A lover of family, friends, travel, and wildlife, you might spot her out cycling or enjoying a glass of w**e.

02/07/2026

When people think about treating hard water, the conversation often focuses on limescale.

But what about the minerals themselves?

Calcium and magnesium are the minerals responsible for water hardness and limescale formation.

They are also naturally occurring, healthy minerals found in drinking water.

Unlike salt-based softeners, catalytic water conditioning retains these minerals while helping prevent them from forming hard scale deposits

This is one of the key differences between water conditioning and traditional salt-based softening.

Rather than removing minerals from the water, catalytic water conditioning changes how those minerals behave. The treatment helps prevent them from forming hard scale deposits while allowing the water to retain its natural mineral content.

The result:
• Reduced limescale formation
• Protection for appliances and systems
• No salt or chemicals added
• Natural minerals remain in the water
• No regeneration cycles or wastewater discharge

It's an approach that focuses on controlling scale without fundamentally changing the composition of the water.

Water treatment doesn't always have to mean taking something away.

26/06/2026

Water conditioning for domestic and commercial systems.

Scaletron is a versatile solution designed for both residential and commercial applications. With a range of end fitting options, it offers greater installation flexibility than standard domestic units—making it suitable for everything from whole-house protection to larger building systems.

It’s commonly installed in plant rooms, as well as on incoming mains supplies, to protect heating systems, hot water generation, and downstream equipment from limescale.

A reliable, inline solution built for continuous use across a wide range of system sizes.

19/06/2026

Hard water problems don’t need complex solutions.

This feedback reflects what we consistently see across commercial systems—reliable performance, measurable results, and a straightforward approach to scale control.

Fluid Dynamics water conditioners use catalytic technology to prevent limescale forming in the first place, helping to:

• Maintain system efficiency
• Reduce maintenance and downtime
• Extend equipment lifespan

All without chemicals, salt, or power requirements

Address

Unit 10, Hybris Business Park, Warmwell Road
Dorchester
DT28BF

Telephone

+441305520631

Website

https://fdiltd.com/

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