Slide Residential descaler Alternative to water softeners Water is safe and healthy to drink Noticeable reduction of up to 90% of limescale from kitchen and bathroom surfaces.
Removes existing scale deposits from pipes, washing machines, dishwashers and hot water tanks.
Water feels softer, tastes better and lathers more.
Protects from rust and corrosion saving energy, maintenance, repairs and renewal costs.
No salt, chemicals or metal alloys

Slide Benefits for your home Alternative to water softeners Filters and shower heads stay cleaner.
Considerable savings on cleaning agents.
Faster cleaning of kitchens and bathrooms.
Lower maintenance and repair on equipment.
Cleaner washing machines, dishwashers, hot water tanks
Improves energy efficiency by up to 30%
Reduction of existing limescale in the piping system
Easy installation - no need to cut pipes
100% maintenance free
Eco-friendly - No salt, chemicals, metal alloys or magnets.
Water is safe to drink

Residential descaler & anti-limescale system

Vulcan V3000

Low volume usage flats, apartments, solar panels etc.

Vulcan V5000

Medium volume usage for standard family homes and heating systems

Vulcan S10

Large family homes or homes with power showers etc.

Vulcan S25

Extra large family homes & swimming pools

Vulcan S50

High volume use & large residential swimming pools

Made in Germany

CWT has been producing Vulcan systems in Germany since 1948.

Today it is a global brand available in over 70 countries


10 year international warranty, approximate lifespan – 30 years

Works on all pipe types

Vulcan capacitive pulses are fine tuned to work with all pipe types – metal, copper, iron, plastic, compounds and MDPE.

0% Interest Free*

CWT offers a unique facility for residential customers to purchase Vulcan systems

  • 0% Interest Free Plan*
  • Small initial payment
  • 12 monthly DD payments

Removes limescale in your home from pipes & equipment

Reduce the limescale effect

Vulcan uses capacitive pulses to change the limescale structure to reduce visible limescale by up to 90%*. Works on all pipe types. Self install – no need to cut pipes. Water feels softer, lathers more, tastes better and is safe to drink.

Dissolves existing limescale

Vulcan helps to dissolve existing limescale from pipes and equipment by changing the carbonic balance in the water. Improves energy efficiency by up to 30%. Better water pressure and eco-friendly.


Protects against rust & corrosion

Lower repairs, maintenance, servicing and energy costs by creating a protective metal carbonate layer  to protect and prolong the lifespan of equipment and appliances. No need for salts or expensive chemical dosing.


Additional benefits..

The Vulcan treated water is capable of having and anti-scaling effect

  • up to 2km from the point of installation
  • up to 7 days if water is stored
  • up to 97ºC

Vulcan creates a protective layer

Two months after installation, there is clear evidence of the Vulcan effect creating a fine metal carbonate layer to protect pipes and equipment. As this is a copper pipe the protective layer is copper-carbonate (a green colour)

Vulcan descaler for better health

Health Benefits. Mineral rich drinking water Vulcan does not interfere with the natural composition of the drinking water. Important minerals remain in the water for a healthy diet. Especially young children and elderly people benefit from the healthy calcium and magnesium content that naturally is found in tap water. Water tastes and smells better and gives food and beverages its natural flavor Vulcan keeps the natural taste of water as it does not change its chemical composition. This gives you the best tasting water possible. Vulcan cleans the piping system once again and therefore cleans it from rust particles. Rust is gone and can no longer add its unwanted flavor any more.

The piping system in your home. Reduction of scale deposits in your piping system. Vulcan takes away the adhesive power of scale particles so that scale is simply washed away with your water as a fine powder.

New scale-formation is stopped. Vulcan dismantles already existing deposits Vulcan carefully dissolves already existing deposits in the piping system. The scale build-up process is reversed and the pipes gradually become clean again. This take-out process will not block up your pipes or drain because the treated crystals are microscopic in size and wash away in the water.

Corrosion protection. Metal pipes and equipment often suffer from pitting corrosion. The electric Vulcan impulses generate a metal-carbonate protective layer that prevents pitting corrosion. Increased water pressure Vulcan sanitizes the pipes from scale deposits and can even restore a pipe’s full diameter. Water can flow freely again and you regain normal water pressure.

Vulcan removes limescale - Savings for Heating and Maintenance

Heating Water heaters Vulcan controls scale build-up in tankless water heaters permanently and reduces constant maintenance as heat exchangers get fewer deposits. Your water heater will work much more efficiently once again, and you can extend the time to your next service maintenance.Heating systems regain full performance When water is heated in a hot water tank the hard water always leads to thick deposits on the heating elements. This layer inevitably causes a great reduction in the capability of the heat to transfer. With Vulcan, deposits are minimized and your heating performs at a much higher capacity again. Service maintenance intervals are extended. Typically, water heating bills will be substantially reduced.

Vulcan anti-limescale for easy cleaning in kitchens & bathrooms

Kitchens and kitchen appliances. Kitchen surfaces, sinks, faucets and fixtures stay cleanerYou will quickly notice that scale is visible but acts like a fine ‘dust’ which can be removed easily with a damp cloth. Surfaces and tiles will be smoother and shinier again.

Dishwashers. Dishwashers operate with less detergent and less additives. The use of detergent can be reduced by up to 25%. Typical spotting on dishware is reduced or no longer apparent.

Reverse Osmosis filters. RO-filters for your tap drinking water last longer. Water filters and RO-filter membranes will work more efficiently and the permeate is easier to handle.

Washing machines. Cleaning is more effective as Vulcan-treated water lathers noticeably more. The same amount of detergent will give you cleaner clothes. You can often reduce the amount of washing detergents in your daily use or stay away from very aggressive agents. Furthermore, Vulcan extends the life of the machine’s heating element.

Bathrooms. Bathrooms and well-beingVulcan does not alter the chemical composition of water, and calcium and magnesium remain in the water. You will quickly notice that scale is visible but acts like a fine ‘dust’ which can be removed easily with a damp cloth. Stains on basins, sinks, toilets or fixtures will be easily wiped away. Shower heads stay clean longer. Soap and detergent use can be cut back by up to 25%. The water will feel as if it is “softer” as the treatment causes a decrease in water surface tension. Generally, soap will lather up more. Skin will feel smoother and hair will be much more manageable because the scale particles no longer make it so frizzy.

Vulcan descaler safe for gardens & swimming pools

Gardening and irrigation with sprinklers becomes more reliable as the nozzles stay free of scale longer. Vulcan-treated water can be absorbed and processed better by plants. As there are less scale spots on the leaves your plants take up water and rain water better and look healthier.

Swimming pools and jacuzzis – Private swimming poolsVulcan makes pool cleaning much easier: scale on the water line is looser and easier to wipe off. Pool covers and tiles on the floor or walls will show less hard scale stains. Vulcan reduces deposits in the pipes and valves. The sensitive circulation pumps last longer, sand filter need less changing and you can cut down on chlorine tablets.

Benefits all around your home