What is the scale cleaning method of gas water heater

Gas water heaters.

The cleaning method of medium scale is mainly to inject a special cleaning agent into the inside of the water heater, and then rinse it after soaking, and there is no need to disassemble the machine. The specific steps are as follows: 1. Prepare tools and material tools: change the cone.

Wrench. Large syringes.

or special injection tools), drain hose material: special cleaning agent for water heater (it is recommended to buy food grade citric acid.)

2. Cut off the power supply, close the gas valve, and water inlet valve After preparing the tools and materials to be used, unplug the power supply of the water heater, close the gas valve, and close the water inlet valve to ensure that the water heater is in a state of water cut-off, power-off, and gas cut-off, so as to prevent it from starting during cleaning. 3. Drain the hot water shower or faucet and drain the water. And open the drain valve of the water inlet so that the water in the water heater is completely discharged.

Note here that some water heater drain valves may be at the water outlet, some water inlets are a filter, and some are equipped with safety valves.

Either way, as long as it is turned on, air can enter and the water in the water heater can be drained completely. 4. Inject the cleaning agent to drain the water in the water heater, and then inject the cleaning agent into the water heater. There are many ways to do this, but it is generally injected from the drain valve at the water inlet.

It is possible to use a special door design for injection methods, to connect a small water pump, or to use the simplest large syringes. When injecting cleaning agent, it is recommended to inject the hot water pipe with cleaning agent until the entire hot water system and the inside of the water heater are fully filled. 5. After the soaking cleaning agent is injected, it cannot be discharged immediately.

The cleaning agent needs to react with the scale for a while to dissolve. The specific soaking time depends on the concentration used and its instructions. 6. After the sewage flushing and soaking is completed, open the hot water faucet, open the water inlet valve, and use the pressure of tap water to drain and flush the water heater and hot water pipeline.

It is not recommended to use a shower, the resistance is large, and it is easy to retain dirt, so it is best to use the faucet directly or the outlet pipe. It is recommended to rinse for more than 5 minutes, and when all the dirt and cleaning agent are rinsed out, the cleaning is complete.

1. Drain and clean with water. Cut off the power supply, close the inlet valve, then open the outlet valve, and reverse the plastic drain ear on the safety valve 90 degrees counterclockwise to naturally drain the water and sediment in the water heater. Then fill the tap water to clean, after cleaning, and then return the drain ear to its original position, pay attention to fill it first before it can be energized.

2. Dilute hydrochloric acid cleaning. dilute concentrated hydrochloric acid into a low-concentration hydrochloric acid solution with water at a ratio of 1:3; Remove the water heater that needs to be cleaned of limescale and turn it upside down, so that the inlet and outlet of the water heater are facing up, and then pour in the prepared hydrochloric acid solution (the amount of solution poured should be flat to the inlet and outlet); After about half an hour, the hydrochloric acid reacts with limescale and dissolves, at this time, pour out the hydrochloric acid solution and rinse it with water.

3. Disassemble the water heater and remove it manually. The technical requirements are relatively high, so don't do it easily.

There are five ways to do this:

Method 1: Lemon descale. Put the lemonade into the water heater, after aerating, the water is boiled and boiled for about 5 minutes, and after boiling, let the lemon soak in the water for 2 minutes to remove the scale in the water heater.

Method 2: Vinegar to remove limescale. You can put a few spoonfuls of vinegar into the water heater and boil for an hour or two to remove the scale. If the main ingredient in the scale is calcium sulfate, the soda ash solution can be poured into the kettle and boiled to remove the scale.

Method 3: Clean with hydroxymalonic acid, the raw materials are safe, non-toxic and environmentally friendly. This limescale cleaner is easy to use and effective, with the right dosage and detailed instructions, making it suitable for home use.

Fourth, a specific cation exchange resin is used to replace the calcium and magnesium ions in the water with sodium ions, because the solubility of sodium salt is very high, so it avoids the formation of scale caused by the increase of temperature.

Fifth, both nanofiltration membrane (NF) and reverse osmosis membrane (RO) can intercept calcium and magnesium ions in water, thereby fundamentally reducing the hardness of water. The characteristics of the membrane separation and scale removal method are that the effect is obvious and stable, and the treated water has a wide range of applications; However, there are high requirements for inlet pressure, and equipment investment and operating costs are higher than those of Chabi.

Reference Encyclopedia Scale.

Cleaning the scale inside a gas water heater can be done by following these steps:

1.Close the gas valve, unplug the water heater, and wait for the water heater to cool down to room temperature.

2.Open the drain valve of the water heater and drain the water inside the water heater.

3.Remove the inlet valve and outlet valve of the water heater, and put the two valves into a bucket of dilute acid solution to soak for 20-30 minutes, generally using acetic acid or citric acid solution.

4.Take out the valve, rinse it with clean water, and brush the inside of the valve with a soft brush or steel wool ball to remove the scale inside.

5.Remove the heater of the water heater, clean the inner part of the heater with a soft brush or steel wool ball, and remove the scale and dirt from the internal setup.

6.After cleaning, reinstall the valve and heater on the water heater and install it in strict accordance with the installation instructions.

7.Open the drain valve of the water heater and rinse the inside of the water heater with clean water until the water flows out.

8.Open the gas valve, turn on the power, turn on the water heater, and check if the water heater is operating normally.

It should be noted that when cleaning the water heater, the gas must be cut off first** to avoid danger. In addition, protective measures should be taken during the cleaning process, such as wearing gloves and masks, to avoid causing harm to the body. In addition, the cleaning should be operated according to the instructions to avoid damage to the water heater.

1.Preparations: Prepare an appropriate amount of vinegar or baking soda; Prepare a wrench; Prepare a screwdriver; Bendhorn prepares a basin.

2.Close the gas valve.

3.Use a wrench and screwdriver to disassemble the water heater, then locate the heat exchanger and remove it. (The heating link in the heat exchanger is the most prone to limescale.) ）

4.Put the dismantled heat exchanger into the prepared basin, pour half a bottle of white vinegar or an appropriate amount of baking soda with an appropriate amount of silver, add an appropriate amount of water, and completely soak the heat exchanger in the basin. Wait 24 hours.

5.While waiting, wash the casing of the gas water heater to remove the ash layer from the inside.

6.After 24 hours, take out the heat exchanger, clean it with clean water, wipe it with a clean cloth, and put it in a ventilated place to air dry.

7.Replace it in its original position.

8.The first time you use a gas water heater after cleaning the scale, put more hot water to rinse off the vinegar smell in the heat exchanger. When you can't smell the vinegar in the hot water, use a clean hot water bowl.

1. Close the water heater inlet valve, remove the cold water hose, and connect the descaler to the water heater inlet.

2. Put the water pump of the descaler into the descaling liquid, remove the hot water hose, and also put it into the descaling liquid.

3. Plug in the power supply and start the cycle cleaning. Citric acid breaks down limescale and turns it into yellow, green, black or red colors.

4. After circulating cleaning for 10-20 minutes, let it stand for 10 minutes, remove the descaler, install the cold water hose, open the hot water faucet, and flush the residual descaling liquid in the water heater.

<> gas water heater is actually a heating pipe, when cleaning, you only need to remove the water heater from the water inlet and pour detergent and keep it for a while. The commonly used detergent can be mixed with white vinegar and water 1:1, in fact, the dilution of toilet cleaner is also good, and there is a special detergent sold in the supermarket.

After about 15 minutes of detergent, the water in the basin was noticeably darker.

This is the rust and debris in the pipe, the scale is dissolved in the water, of course you can't see it, but you will obviously feel that the water flow is much larger, indicating that the scale has been cleaned up. The time of cleaning up is at your own control. Don't wait too long, descalers are acidic and will corrode metals.

If your water heater is a cylindrical water heater heated by electricity, you can pump the descaler solution into the water heater, heat it to a certain temperature, wait for 20 minutes, and drain the water in the water heater.

Many people have gas water heaters installed in their homes, and some users think that gas water heaters do not need to clean scale, but this idea is wrong. Whether it is a gas water heater or an electric water heater, after using it for a period of time, we need to clean the scale, if it is not cleaned, it will bring certain harm.

1. How to remove scale from gas water heaters.

1. If it is a gas water heater, there is a heating pipe, we need to remove the water heater when cleaning, and then pour detergent from the water inlet, for example, we can choose white vinegar, add water, mix evenly according to a certain ratio, and then pour it in.

2. Wait a little bit, and the scale inside can be effectively dissolved. Then drain the water inside, and it will take about 20 minutes before and after to achieve the purpose of cleaning.

Second, how to clean the scale of the electric water heater.

1. First of all, you need to unplug the power socket and close the water inlet valve and outlet valve. Next, open the nut of the water heater, first block the hot water outlet with your hand to prevent the water from flowing outNext, open the nut of the cold water inlet, and at the same time connect the hose of the shower until the cold water flows out.

2. Connect the hose on the cold water to the water inlet, and then start to fill the water, and then plug the cold water inlet for up to a minute, so that the cold water can be put in the water heater for a while. After that, open the cold water inlet to drain the water, and repeat it several times to effectively clean the water heater and remove the scale.

3. The consequences of not cleaning the water heater.

1. If your water heater has not been cleaned for a long time, it will lead to a great reduction in the effect of use. Because it will affect the safe operation, especially the electric water dispenser has a heating rod inside, which can transfer heat to the water during normal operation, causing a large temperature difference. However, if there is a scale block, it will cause the temperature to rise sharply, bring a certain pressure, and there will be a certain danger.

2. It will also cause allergies, because long-term contact with stainless steel or other harmful substances will cause chemical reactions. When a person takes a bath, direct contact with water will cause itching or red spots.

I concluded: The above content is specifically introduced to the electric water heater and gas water heater cleaning scale method, if it can be cleaned frequently, it can effectively ensure the cleanliness of the internal water quality, but also can bring better protection.