Hard water stains can be troublesome to remove, especially if they've been neglected for a long period of time. Most water in the United States has hardness minerals from 3 to 50 grains per gallon (gpg). Other contaminants such as iron and/or manganese only make things worse. This hard water reacts with soaps and detergents to form the insoluable soap curd that you see on your shower doors, as a ring around the bathtub or dingy, yellowish clothes and on dishes. You might know this by its other name: soap scum. When water is heated for showering, washing clothes, dishes, etc, the hard calcium and magnesium ions in the water become insoluble and form the white chalky scale we are so used to seeing, clogging our shower heads.
To truly be rid of this hard water, you need to install and maintain a water softener to remove all, or most, of the hardness minerals. But you can also just live with it and regularly do a deep cleaning in order to keep your fixtures and faucets looking their best. To do this you would remove your shower head and soak for a few hours, or overnight depending on how bad it is, in white vinegar, which is a mild acid. In between deep cleanings, shower heads with easy-clean nibs make it simple to wipe off most of the scaling.
You can find shower heads with rub clean nozzles all over our site, including these pages: