run hot water for several minutes to flush out stagnant water and inhibit bacterial growth. Replace old showerheads. Shower heads with significant limescale build-up are more challenging to clean ...
There is a low tech pressure switch to prevent the coils from powering up if there’s not enough water pressure. You hope that prevents the unit from bursting into flames. The shower head is ...
"So showerheads - you take a shower, the water doesn't come out. You want to wash your hands, the water doesn't come out. So what do you do? You just stand there longer or you take a shower longer?