If you have hard water, most likely your shower head has lost pressure over the years because of calcium build-up. Removing the calcium is simple. First fill a microwave safe
pyrex or glass measuring cup full of vinegar. Heat the vinegar in your microwave until it is warm. Make sure it is not boiling and if it is too hot, let it sit until you can keep you finger in it without getting burnt. Pour the vinegar into a plastic sandwich bag. Double-up the bag if you fear they will leak. Carefully place the bag around your shower head so that the head is completely immersed into the vinegar. Using rubber bands, secure the bag and vinegar to the shower head. Let it work for about an hour and flush the shower head by running warm water through it for a few minutes. Repeat if necessary.
