Fernox has made some changes to its system cleaner, which is designed to be effective on limescale deposition. Re-branded DS40 Descaler and Cleaner, this powerful, fast-acting citric acidic cleaner is now available with a 500ml liquid System Neutraliser for simpler and safer dosing.

DS40 Descaler and Cleaner works to rapidly remove limescale, black sludge, and other debris from central heating systems. It is suitable for use when powerflushing, a recommended cleaning method under BS 7593:2019, and can also be used to descale heat exchangers or boiler components separately.

A free-flowing powder, it is easy to use in conjunction with powerflushing machines and when applying via the F&E tank. Installers will also only need one box of DS40 Descaler and Cleaner per application. It is safe to use with all mixed metal central heating systems. 

DS40 Descaler and Cleaner now comes with a new 500ml liquid, non-hazardous System Neutraliser rather than a traditional powder version. This must be used in order to prevent the descaler and cleaner from causing any damage to the aluminium components found in central heating systems. The liquid version ensures that all environmental regulations are adhered to.

Richard Crisp, Head of Chemistry at Fernox, said: “DS40 Descaler and Cleaner is one of our best-selling products – it is easy to use and offers top quality results. At Fernox, our aim is to make the installer’s job as simple as possible, which is why one box of DS40 Descaler and Cleaner is suitable for use during one powerflush. Not only that, using the product can help them to comply with BS 7593:2019, Part L of the Building Regulations and Benchmark Scheme.”