Have here the Calgon powder bought - whether liquid or in powder - for the washer and protection of lime just great. Admit each wash a small measuring cup full in the machine - and since she is running again very quiet. Men seem not to care so what - who buy anything - what should serve as limescale, only have noticed that this is not the case. Limescale protection is not the same protection against limescale. My husband wanted to save money only once again, I prefer to take the expensive Calgon than anything else. Washers muüssen go broke because of calcium deposits are not always after two years.