Advice
Only boil the water you need, not only does this help with water efficiency, it will help prevent kettle limescale by not boiling the same water over and over again.

You can de-scale your kettle by half filling it with water and adding two tablespoons of white vinegar. Leave it for four hours, then empty the kettle and remove the loosened scale. Rinse and repeat as necessary. As an alternative you can buy a scale remover, and follow the instructions on the packet.

Advice
Make sure your dishwasher is regularly topped up with dishwasher salt.

Advice
Clean regularly using a liquid cleaner. Abrasive materials may scratch the surface. If the limescale persists in your toilet you may want to regularly clean the pan with an acid-type sanitiser available from DIY stores and supermarkets. 
Do not mix cleaners and always ensure you read instructions carefully.

Advice
To avoid scale simply avoid overheating the water. A maximum temperature of 60°C (140°F) is recommended. 

You can reduce scaling in heating systems by using a chemical scale inhibitor, but we suggest you take advice from an approved plumber before using these.

Advice
Make sure the thermostat is working and correctly adjusted. For most homes 60°C is sufficient. If you regularly use an immersion heater it may be possible to prevent the build-up of scale by using elements with special metal sheaths.

In some cases you may also want to use a chemical scale inhibitor, but we suggest you take advice from an approved plumber before using these.

This is because some water softeners increase sodium levels, which may have negative impacts to health.

While many have been approved by the Water Regulations Advisory Scheme (WRAS) as devices that will be safe to use, this does not guarantee their effectiveness.

Your own plumbing design and other local factors may influence how well the equipment works. It is wise to get a guarantee, with a money-back clause, from the manufacturer in case you are not satisfied with the results.