1. Water enters into the Head unit by opening the Cold Water Tap.
2. The water pressurizes in the shower /water compartment  and the expansion valve lifts.
3. The value is connected to the electricity connection points.  As the valve lifts the electricity is connected
   and feeds the element in the shower/water sealed compartment.
4. The element automatically heats up and heats the water in seconds.
5. Electricity is only used when the tap is on as no electrical connection with water off. Thus saving electricity!

Pressure Valve Down – Tap Closed

Pressure Valve Up – Tap Open