29-06-2022, 11:02 AM
(This post was last modified: 29-06-2022, 11:02 AM by Reckless Rat.)
We have really hard water here and are regularly plagued with limescale deposits. There is a product that we use for getting rid of it that's really effective. It's called HARPIC POWER PLUS 10X - try pouring some of that into the overflow from the bottom before you try the bowden cable. It is the best I've ever seen for dissolving limescale. Then, once the overflow is clear fill your rad with a mix of water and anti-freeze.