How to clean the hotel scale?

First, deep cleaning: please ask professional maintenance workers. According to reports, the water heater should be thoroughly cleaned once every three years. Deep cleaning requires opening the maintenance hole of the water heater. Therefore, in order to ensure safety, it is best to invite professional maintenance workers to clean it. Many people may think that the water from the water heater that has not been cleaned for many years at home is still very clear, and that there is no scale in it. In fact, there is a lot of scale and other dirt in this water heater, which needs to be cleaned urgently. Inside the water heater, the hot water nozzle is about 2 cm high from the top of the water tank, and the cold water nozzle is about 3 cm from the bottom of the water tank. Usually, when using the water heater, the cold water pipe is always filled with water, and the hot water is squeezed to the top by the cold water and discharged along the hot water pipe, while the scale is deposited at the bottom of the liner and will not be discharged through the hot water pipe.

Second, light cleaning: DIY electric water heaters are recommended to be cleaned once every three years and once every six months. The cleaning steps are not complicated, just do it yourself.

Step 1: Unplug the socket and turn off the two triangle valve.

Step 2: unscrew the nut of the hot water port and block the hot water port to prevent water from flowing out of the water heater. At the same time, unscrew the nut of the cold water port and connect the hose (only the shower hose) to drain water until no water flows out of the cold water port. 50L water heater drains about 1 hour.

Step 3: Remove the hose connected to the cold water port, connect one end of the hose to the hot water port and the other end to the faucet, turn on the faucet to pour water 1 min, plug the cold water port, let the cold water stay in the water tank for a while, then open the cold water port to drain water, and repeat this for several times until the drained water is clean.

Step 4: Screw on the nuts of the cold water port and the hot water port, turn on the triangle valve, turn on the hot water from the faucet of the water heater, and then turn it off after the water flows out.