1. Remove the solar vacuum tube, fill it with an appropriate amount of white vinegar and soak it for 10 minutes, then use a brush to pull it back and forth to remove the remaining scale, and rinse it twice with clear water. . But be sure to handle it with care, as vacuum tubes are very fragile.
2. If it is inconvenient to remove the vacuum tube, you can open the water inlet of the solar water heater and pour white vinegar into the water storage tank. Allow the water heater to circulate automatically for 20 to 30 minutes to allow the white vinegar to fully contact all parts, then open the drain and drain the white vinegar that cleaned the scale. Finally, fill the tank with water, circulate it again for two minutes, then drain the circulating water.
Solar water heaters generally need to be cleaned, inspected and disinfected all the time.s every one and a half to two years. You can ask professionals to clean them, or you can carry out disinfection work yourself. People ignore solar power cleaning. For water quality reasons, a large quantity of scale and rust is deposited there. The power and thermal efficiency of solar energy are significantly reduced and more than a third of the energy is wasted.
Due to long-term accumulation of scale, it not only wastes energy, but also creates hidden safety risks. Scale causes uneven heating, causing pipes to burst and pipes to block. the water temperature drops. Solar water heaters will have problems in the water tank after being used for more than two years. There is a layer of water stains. In fact, water contains a certain amount of calcium and magnesium salts, such as bicarbonate, carbonate, etc., which also contain sediments and organic matter. These salts undergo physical and chemical changes during the heating process to form scale. like when we boil water with an electric kettle for a long time, we see a layer of water stains. The calcium bicarbonate in the water will break down into insoluble calcium carbonate as the water temperature increases. So clean it regularly.
After using solar energy for a long time, it is easy to produce scale. This is due to the high content of calcium and magnesium ions in tap water.
The effective way to do it. Solving the problem is not removing it. The key is to stop producing it, that is, to soften tap water before it enters the solar system, which essentially solves the scale problem.
There are manyways to soften it. I have used a pre-filter with a filter element on it before. It's inexpensive and easy to use. If you want to buy one, just search online. If it is a vacuum glass tube, clean it as follows: first rub detergent or soapy water on the upper part of the heating tube (the part near the water tank) , hold the middle of the tube up (into the water tank) and push or pull hard (rotation is better)), after the lower head comes out of the groove, change the angle and push or pull towards the bottom (outside the water tank) to remove it. After removing the vacuum tube, wrap a thin wooden stick with a soft cloth, insert it into the glass vacuum cleaner, and push it back and forth several times. This can remove the remaining scale on the tube wall, then rinse it with water and. go back and forth two or three times! If you are worried, youYou can rinse with vinegar for best results.
If it is a plastic sewer pipe, there is no need to clean it, because it is rusty and basically cannot be treated. It is recommended to replace the hose.