Clean your shower head with vinegar
Metal shower heads will discolour over time. Mineral deposits build up over the months and years, clogging the tiny holes that the water spurts through and stopping the water from passing evenly. Cleaning your shower head on a regular basis will make the flow of water much better.
All you need is some vinegar, a simple plastic bag and rubber band to achieve great results – just fill the bag with vinegar and attach it to the shower head using the rubber band. Leave it to soak for an hour and then rinse it well with running water before polishing with a damp cloth to get an extra shine on the shower head.