• Powerful descaler: Fernox DS-3 2kg Limescale Remover is a heavy-duty solution for combating tough limescale buildup
• Effective formulation: Specifically designed to dissolve and remove even the most stubborn limescale deposits, ensuring optimal performance of your appliances
• Versatile usage: Suitable for a wide range of applications including boilers, hot water cylinders, instant hot water tap boiler tanks and kettles. It can also be used as a descaler bath solution for items like showerheads and heat exchangers to remove limescale
• Easy to use: Simply dilute upto 100g per litre of warm water (max 80c) and watch as the solution turns from yellow to green to blue to indicate that the solution has exhausted. Then rinse and drain several times until notrace or odours remain.
• Trusted brand: Fernox is a renowned name in water treatment solutions, providing peace of mind with every use
• Economical pack: With 2kg of product, you get ample supply to tackle multiple descaling tasks around your home or workplace

Using sulphamic acid, Limescale Remover DS-3 is a powerful but environmentally friendly product which is ideal for use to remove baked-on limescale deposits from domestic appliances and boiler heat exchangers. Designed with the consumer in mind, the product is safe and easy to use; after each application the product changes colour to indicate when DS-3 is exhausted and ready for disposal to foul drain. Fernox DS-3 is used for removing limescale from any type of water heater to restore its efficiency. It is safe to use with steel, stainless steel, cast iron, copper, brass, PVC, ABS rubber polythene and most plastic pipework. Limitations: It should not be used with thin gauge or badly corroded aluminium, zinc, galvanised steel, acrylic (e.g. plastic kettles and baths) chromium plated or enamelled surfaces (e.g. baths), concrete and asbestos. When in doubt, check with the appliance manufacturer. Restores efficiency to all types of water heater Powerful acid limescale remover, dissolves up to 50% of its own weight of limescale Corrosion inhibited formulation Colour change indicated when exhausted Safe to apply and easy to use Belgaqua approved Fernox DS-3 should first be dissolved in hot water at the maximum concentration of 1 kg per 10 litres of water (10%) with a minimum in-use concentration of 250 g per 10 litres of water (2.5%). Hot water will accelerate de-scaling, but do not exceed 80 deg C. The de-scaling process will release carbon dioxide gas (CO2), which can cause foaming. Hence, space should be allowed for this before commencing work. A colour change from yellow, through green, to blue indicates the de-scaling power is exhausted. However, the major part of the solution's effort is expended when green is reached and if cold the final change to blue can take a long time. When de-scaling is complete, drain and rinse several times until no traces or odours remain. Fernox DS-3 is a hazardous product and so appropriate care should be taken when using the product.