White vinegar

White vinegar is great for both cleaning and descaling. If you live in Brighton, you'll know all about scale and hard water..... And limescale removal is just one of the many things white vinegar does: It cleans glass, is a substitute for rinse aid in your dishwasher and it's a great stain remover.. it does, however, smell of... vinegar (Unfortunately for me) but the smell goes pretty quickly.

The Dri-pak website is full of excellent info about how to use their products. Thrill-a-minute.