What Is Fernox DS-40 System Cleaner?
Fernox DS-40 System Cleaner is a professional-strength powdered cleaner formulated for deep system cleaning. It targets limescale deposits and corrosion by-products found in older or neglected systems. Consequently, it restores proper water flow and heat transfer.
Because of its strength, installers typically use DS-40 during major refurbishment or power flushing work.
Why Descaling and Cleaning Matters
Limescale and corrosion reduce boiler efficiency and radiator output. As deposits build up, energy consumption increases and component wear accelerates. Therefore, deep cleaning becomes essential for system recovery.
By using DS-40 System Cleaner, installers remove harmful deposits. As a result, systems run more efficiently and respond better to inhibitor protection.
How Fernox DS-40 System Cleaner Works
Once dissolved and circulated, DS-40 reacts with limescale and corrosion deposits. It breaks them down into removable particles. Therefore, flushing removes contamination effectively.
After cleaning, the system becomes ready for neutralisation and inhibitor dosing. Consequently, long-term protection improves significantly.
Key Features of Fernox DS-40
DS-40 delivers aggressive cleaning performance for difficult systems. It removes heavy limescale and stubborn debris where milder cleaners struggle. As a result, it restores severely affected heating systems.
The formulation works across a wide temperature range. In addition, it supports professional power flushing procedures.
Applications and Suitable Uses
Severely Contaminated Heating Systems
Fernox DS-40 suits older systems with heavy scale and sludge build-up. It restores circulation and radiator performance. Therefore, it helps recover systems close to failure.
Hard Water and Limescale Areas
In hard water regions, limescale forms quickly. DS-40 effectively removes these deposits. As a result, boilers and heat exchangers regain efficiency.
Benefits for Installers and Property Owners
Fernox DS-40 allows installers to resolve serious system contamination. It reduces repeat call-outs and improves long-term reliability. Consequently, professional results improve.
Property owners benefit from restored heating performance and lower running costs. Furthermore, clean systems operate more quietly and evenly.
Next Working Day Delivery: Yes, we hold all our products in stock at our 7000 sq ft Nottingham warehouse and at our 3000 sq ft warehouse in Market Harborough and use DPD for a tracked next-day delivery.
Collection Available: You can always collect from our Nottingham location and help yourself to a free tea and coffee.









