Why does electric water heater have scale, what influence can you have?
Cleaning step1. before cleaning the electric water heater, unplug the power supply, cut off any heating of the electric water heater, and turn off the cold water and hot water angle valve under the electric water heater.2. open the water heater seal and replace the magnesium bar in the electric water heater. The role of magnesium rod is the reduction of chemical reactions on the corrosion of heating pipe, so that the scale, long-term use of magnesium rod will produce floc or lump wrapped rods, until the magnesium rod consumption completely. Therefore, the long-term use of electric water heater, it is best to replace the new magnesium bar, otherwise it is easy to leakage.3. remove the relief pressure valve wrench limiting device (usually a plastic square hole parts, to prevent insurance a pressure relief valve is opened by accident), with a plastic tube connected to the pressure relief valve pressure venting pipes, to draw out the water in the tank; the relief pressure valve by wrench the vertical position, turn 90 degrees, then the pressure relief valve has been opened.4. open the hot water pipe joint metal hose at the time to see from the pressure relief valve in the water out, let go the water storage tank. When the pressure relief valve orifice basically no water flows out, the water in the tank has been basically put out, along with the inner most scale (floc) will follow out row.
Because the water contains minerals and some impurities, heating pipe for electric water heater is energized at a minimum temperature of several hundred degrees, the water temperature around the heating pipe increased rapidly, so the heating pipe around the most prone to scale, attached to the scale effect of heating pipe heating pipe cooling, a long time can burst pipe leakage, if is the tank water heater is very small, the scale will be more crowded with the liner, so that the water heater scale affect the life is very short
The hot water is heated to some extent and the scales appear. The amount of scale is determined by local water quality and degree of heating. The worse the local water quality, the more the scale, the higher the degree of heating, the more furring. General scale will not have any serious impact on the regular cleaning on it.
