If you own an Insinkerator Hot Water Tap and Tank, it needs to be descaled. Mineral salts will build up in it over time, and it will become less efficient and may be more difficult to use. Insinkerator offers no instructions on how to descale the tank, and even states it is not necessary.

In this video, I'll prove that you need to do it, and show you the steps and simple equipment you need to do the job. It's not a hard job, but it takes a bit of time.