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1. The first secret of the electric shower is how the faucet turns it on. It all starts with the water released by the faucet, which enters the shower box with a lot of pressure. As the water that wets us in the shower comes out with a smaller flow, part of it accumulates inside the shower
2. The accumulated water pushes the diaphragm, part that supports some electrical contact points. When the diaphragm rises, these points touch the contacts in the upper part of the shower, which is connected to the power grid. Only then is the electric current activated, turning on the shower
3. The electric current then begins to run through a resistance, a metallic piece that heats up when the current’s electrons go back and forth through it. In contact with the overheated resistance, the cold water that accumulates in the shower also heats up
4. The “winter” and “summer” switch regulates the resistance section that the current runs through. In the “summer” position, all resistance is activated. With more room to circulate, the electrons heat up the resistance less, and the water stays at a warm temperature.
5. In the “winter” position, only a small part of the resistance comes into play. With less space to travel, the electrons “bump” more into the metal, leaving the resistance much hotter and also raising the temperature of the water that comes out of the shower
6. At the end of the shower, when the faucet is turned off, the rest of the water inside the shower drains. Without water to push it, the diaphragm returns to its initial position. Thus contact with the top of the shower is interrupted and the electrical current is turned off.