Kit use tips
Some points that might be useful for others:
1. The video is good but a near to new valve is used in the demo.
2. In the real world if you have hard water limescale is the real problem.
3. A good repair can only be made if all limescale is removed.
4. Do not scratch off the limescale, scratches on the surfaces can cause leaks.
5. A good chemical based cleaner like Viakal and an old tooth brush works well.
6. When re-assembling grease the O Ring gooves first also the O Rings. This is better than just greasing after assembly.
Hope this helps.