How to replace the magnesium rod of electric water heater?

How to replace the magnesium rod of electric water heater?

I often hear many people say that the magnesium rods in electric water heaters should be cleaned regularly. If you leave them alone for a long time, it will become like this, or even break:

Maybe many people are not very clear about the role of magnesium rods. The existence of magnesium rods is to react with the scale generated by heating the tap water. By sacrificing their own way, the scale will not accumulate on the heating rod and affect the water heater Heating speed and service life.

Because the scale is corrosive, as time goes by, it will corrode the inner tank and cause the water heater to leak. Even if the inner wall of the water heater is protected by enamel technology, it is still not guaranteed that it will never crack and cause problems. Both have deadlines.

How to replace the magnesium rod is our topic today. In fact, it is not difficult to imagine, and you can do it yourself.

First ensure that the water heater is in a power-off state. The water in the inner tank is cold, and the hot and cold water valve at the bottom is closed. Then, find the drain outlet and use the handle to open the plug (magnesium rods are usually installed at the drain outlet).

Pull it out slowly. In the process, a lot of yellow water will flow out. Be careful not to soil your clothes. You can place a bucket directly under the water before screwing it. If the magnesium rod is pulled hard, If it does not come out, it means that there is a lot of scale nearby. It needs to be cut off with a screwdriver before it will become loose.

After taking it out, you can replace it with a new magnesium rod. Below the magnesium rod is a circle of bolts. You can remove the old magnesium rod by rotating it. In addition, if the discharged water is particularly yellow or black, you can wash the water heater incidentally;

Finally, after the water is drained, you can insert the new magnesium rod into the sewage outlet and fix it, and you're done. Then, open the hot and cold water angle valve to see if the water heater can be used normally.

In terms of purchasing magnesium rods, what I can give you is that the original is better, not the original. Be sure to measure the size of the drain outlet accurately before you buy the corresponding size of magnesium rod. Generally the price of magnesium rod is about 50 yuan, which is not very expensive;

Secondly, if the water heater does not have a drain port, the magnesium rod is with the heating rod. In this case, the water heater must be disassembled and replaced. It is not recommended that you come by yourself, as it may damage the water heater.