My neighbour said he uses radiator inhibitor to stop his radiators from building up sludge inside. How often should you use this and what difference does it make to the efficiency of the radiators?
Radiator inhibitor or water treatment reduces scale build-up inside your boiler and reduces sludge or rust accumulating in radiators. It helps both work more efficiently. As long as you have no leaks and don’t drain down your system the water treatment should last for many years. If you are unsure you should try either of the following: 1. Purchase a test kit from a plumber’s merchant. This will cost around £20 and will last for many tests. To do the test you will need to drain a small amount of water from your system. or 2. Take a shiny steel nail and a small piece of copper (i.e. an offcut from a pipe), place in a clean jar with some water from your central heating system and leave somewhere warm for a few days. The nail and copper should still be shiny. or 3. Ask your service engineer if he carries a test kit for water treatment – and if so ask him to check and, if necessary, top up the water treatment in your system. They will make sure the treatment added to your system is suitabl
