Showers and Legionnaire’s disease

Showers, and in particular, showerheads, are a weak point in a water system and should have special attention. Showers usually operate in the region of 37ºC which is blood temperature and therefore attractive to water borne bacteria and in reality the Legionnaire’s disease bacterium, Legionella Pneumophila. This bacterium, should it be present, has a warm environment in which to multiply and when the shower is switched off, residual warm water remains in the showerhead. It must be remembered that the …