"Washing machines live longer with Calgon!"

Actually they don't!

Have you seen that advert? Warning you about how your washing machine
gets damaged by limescale if you live in a hard water area!

Well what Calgon don't tell you is that all major washing powder and
most generic store brands come with a water softner and as long as you
use the correct amount of powder (too much is fine but not too little)
you'll never have a problem!

Lying bastards!

And hard water is actually good for you!