AQUABION will noticeably reduce calcification occurring on the face of your showerheads and clogging of the pin-holes. However, as with your kettle, it is important to routinely clean out your shower heads of the ‘powdery’ scale which may settle in the layers within the shower head. Brushing out or tapping out should do it or Vinegar for stubborn deposits rather than using chemical de-scalers. More importantly, the electric heating element will be much more resistant against hard calcification (scale build-up). If routine cleaning out is not carried out, in extreme cases, the ‘soft’ scale may back up into the heating element in electric showers causing failure.