How to open the drain of the water heater? What should I pay attention to during the opening process

After the water heater is used for a long time, a large amount of sediment and scale will accumulate in the inner box. This will not only pollute the water quality and affect human health, but also damage the liner and affect the performance of the machine. Therefore, it must be cleaned regularly when in use.

It is very important to clean the water heater and the drain. We can discharge the sewage in the inner tank through it and take advantage of the opportunity to open the sewage outlet to buy some limescale cleaner and add it to the inner tank for cleaning and maintenance to avoid the performance loss of the water heater.

In addition, the drain of the water heater is connected to a device called a "magnesium rod."

important components. It prevents the formation of limescale and protects the inner liner. However, it wears out when used and needs to be replaced regularly. The replacement of the magnesium rod is also carried out through the sewage outlet, so you must pay attention when using it.

1.The sewage outlet is generally set next to the water heater at the water inlet and outlet, and some water heaters will have a text prompt at the sewage outlet. Blowdowns are usually not used, only when cleaning is required;

2.In fact, the principle of the sewage outlet is very simple. Pry open the drain to allow the water in the inner tank to flow out naturally, which can take away some of the deposited impurities and scale. However, it has basically no effect on the scale attached to the inner tank and magnesium rod;

3.To clean the water heater through the drain, first turn off the power and close the inlet valve. After the hot water in the inner tank is cooled, open the drain and let the sewage flow out. After the sewage in the inner tank flows away, open the inlet valve to make the tap water flow into the inner tank and then flow out of the sewage outlet;

4.Clean the electric water heater through the drain.

It is best to disassemble the electric water heater on the ground to avoid splashing sewage. The blowdown valve is relatively closed, and it is more troublesome to unscrew;

Precautions for the use of sewage outlets.

1.Cut off the power supply.

Be sure to unplug the water heater and disconnect the power supply when draining the drain. Because if the water heater is powered all the time, dry boiling will occur after the sewage is discharged, resulting in heating rods and thermostats.

Damage, resulting in heating failure and an increase in the temperature of hot and cold water.

2.Close the inlet angle valve.

The inlet valve of the water heater is generally installed directly below the water heater, and the water is mainly injected from the inner tank. If we don't turn it off during the sewage process, the water in the water heater will keep draining, which not only wastes the water source, but also affects the cleaning.

1. Stop heating the night before cleaning to avoid scalding people when the water in the inner tank is released during cleaning.

2. Turn off the power of the control board, cut off any form of heating of the electric water heater, and be sure to unplug the power plug just in case.

3. Close the two angle valves for hot and cold water under the electric water heater. This is the red and blue switches in the picture above.

1. Unplug the water heater and close the household water supply valve.

2. Use a screwdriver to open the drain pipe. After unscrewing the only screw, be careful not to pull the lid down too hard and push gently in the direction of the drain cap screw.

3. If you use the sleeve to remove the magnesium rod on the sewage outlet, the water will flow out, but the water flow is very small at this time.

4. Use a wrench to loosen the hot water pipe of the water heater, accelerate the water flow in the sewer, and drain the dirt until the water in the water heater is clean.

5. If the hot water ** pipe is blocked, please open the water supply valve, pour the water from the water heater into the water heater, and then drain it from the sewer, and the dirt will be discharged again.

6. Clean the water heater first and make sure the drain is clean.

7. Close the sluice, tighten the hot water inlet, clean the magnesium rod, put it back into the water heater, and tighten the screws. Close the drain cover.

8. Open the sluice, put the water into the water heater, then turn on the water heater, and check if the water heater is working properly and there is no leakage. If there is no marking, the cleaning is successful.

Can the drain of a water heater be opened freely? Electric water heater.

There are three pipe interfaces: tap water inlet, domestic hot water outlet and sewage outlet. They have the function of self-inflicted deception. The function of the drain is to clean the inside of the water heater and replace the magnesium rod.

The drain is located at the bottom of the water heater tank, closest to the bottom of the three water inlets to drain dirty water from the water heater. So, can our outlets be opened at will? The answer is definitely no.

Because the water inside the water heater is basically heated and insulated, the water temperature is usually set between 40-60 degrees and not more than 70 degrees. Water heaters are usually hung high. If the drain is opened, hot water will flow out and splash on people, causing burns.

In addition, the drain is connected to the magnesium rod. Opening the drain can easily cause the magnesium rod to fall and damage the magnesium rod.

After using the water heater for a while, we need to maintain the inside of the water heater tank. The tank in the tank stores high-temperature tap water for a long time. The water from the limbs contains certain metal ions.

When the water temperature reaches 55, limescale will be generated and adsorbed on the inner wall of the tank and the water heater. Limescale can hinder the transfer of heat, causing the water temperature of the domestic water we use to get lower and lower. When repairing the water tank inside the water heater, the drain must be opened.

The preparation before opening the sewage outlet is to close the inlet and outlet valves of the water heater a few hours in advance, cut off the power to the water heater, so that the water heater will not heat the water in the inner tank. For cleaning and maintenance, the drain can be opened directly to drain the water in the inner tank. After the water in the water heater tank is emptied, close the hot water outlet, open the tap water valve, and flush the water heater tank repeatedly until the water at the sewage outlet becomes clear.

If there is a lot of limescale in the inner tank, a cleaning agent can be added. Pay attention to the rinsing time. This cleaning agent is somewhat corrosive.

Soak in the water tank for a period of time, wash the scale of the tank repeatedly, then turn off the tap water, check the corrosion of the magnesium rod, and replace the magnesium rod regularly. The function of the magnesium rod is to absorb the active metal ions in the water, reduce the formation of scale in the water, protect the heating device of the water heater, and improve the heating efficiency. Finally, close the drain and open the angle valve for hot and cold water.

Turn on the power and the water heater can be used normally.

The drain of the water heater cannot be opened casually; The stupid sewage outlet of the water heater needs to be opened when cleaning, and the power must be turned off during the cleaning process, and the heating must be stopped at night before cleaning, and the alternation of hot and cold open empty water must be repeated many times, and the water flowing out of the nozzle is very clean before the inner tank is cleaned.

The water heater drain is at a loss, and it cannot be opened casually; Before opening, turn off the power supply, turn off the water source, close the water inlet valve, avoid the situation of dry burning, and clean it up in time.

It cannot be opened. Due to the high temperature of the water at the sewage outlet and the low location, it is easy to splash. Don't dare to let the sewage outlet be directed at people.

Should the drain of the water heater be opened? Why?

The drain port of the electric water heater should be disassembled and cleaned frequently. Otherwise, the water heater will accumulate a lot of pollutants. If you do not remove the sewage screws for a long time, there may be a problem that is not easy to rust, it is recommended to spray some loosening agent, clockwise with a wrench.

Unscrew it and release it before removing. (Remember to turn off the power and access valves before disassembling the drain.) )。If you don't want to disassemble the water heater often, it is recommended to install a ** water purifier or a scale inhibitor filter pre-filter.

Don't clean your water heater too often!

Stop heating the night before washing to avoid releasing bile during washing.

water, it can heat up.

Turn off the power to the control panel and cut off any form of heating from the electric water heater. To be on the safe side, the power plug must be unplugged, just in case. Close the two hot and cold water angle valves under the electric water heater.

The switches in the red and blue sections of the picture above. Remove the restraint device of the relief valve wrench and connect it to the small outlet pipe of the relief valve with a plastic pipe for pulling out the water from the inner wall. After turning the wrench of the relief valve 90 degrees from the vertical position, the relief valve has been opened.

By removing the fitting of the metal hose from the hot water pipe, you can see the water flowing out of the negative pressure valve and starting the process of discharging water to the inner wall. This drainage process takes a long time. Due to the pressure reducing valve.

The nozzle is too small and it is expected to take about an hour (80 L volume) to put all the water in the internal bile.

When the nozzle of the pressure relief valve basically no longer discharges water, the water on the liner is basically released, and in addition to the released water, most of the water (cotton) on the liner is also discharged. At this time, the official cleaning of the bile begins, and the metal hose of the cold water pipe is connected to the hot water outlet of the water heater, and the cold water angle valve is opened, so that the cold water rushes from the warm water pipe to the inner wall, and the Nu pressure valve can be seen.

Water mixed with limescale continues to flow out of the outlet. Repeat this step many times. After several rinses, the water coming out of the drain is clean, indicating that the inner walls are largely clean.

It can be opened, but it is more troublesome to open, let the water heater drain itself, after all, it is quite troublesome to open it once, and the effect of self-draining is very limited. It's best to find a professional master to clean up, and cleaning the scale from the sewage outlet can't be cleaned at all!

Don't, because the water in the water heater is about 40-60 degrees, and it is at a high place, open the sewage outlet, the hot water will flow down from the high place, it is easy to scald people, the sewage outlet is connected to the magnesium rod, open the sewage outlet, it is easy to fall down, and it will damage the magnesium rod if it hits people.

Do not open it, because it may affect the circuit after opening it, causing some unexpected situations, as long as we clean it regularly.

Need. This will extend the life of the water heater and prevent the water heater from becoming clogged and malfunctioning.

Yes, in fact, the sewage from the water heater should also be discharged regularly, which can also avoid the breeding of many bacteria and be cleaner.

1. Before opening the sewage outlet, the water heater should first turn off or open the relevant switches, then use a tool to unscrew the bolts of the sewage outlet, and finally screw the bolts back on.

2. Before opening the sewage outlet, the water heater needs to turn off the main power supply and the inlet cold water switch. Turn on the faucet to the maximum first, and then according to the electric water heater.

the capacity, ready to receive the water in the basin; Then use a wrench clockwise.

Unscrew the drain nut.

3. Pay attention not to use too much force when you start screwing, but slowly increase the strength. Because there is a magnesium rod attached to the nut of the sewage outlet.

If you use too much force, the magnesium rod may break into the water heater.

4. Take the nut off, and the sewage outlet will be opened.

5. After draining the water, close the water inlet pipe and screw the nut of the sewage outlet. Open the inlet pipe and start filling the water heater until water comes out of the faucet. It means that the water heater is full. Turn off the faucet and plug in the electric water heater.

6. Many people don't know that water heaters have sewage outlets, and each water heater has a special sewage outlet, and there is a protruding lid at the bottom of the water heater, that is, next to the red and blue lines, this is the sewage outlet of the water heater.

7. No matter what kind of water is loaded in the water heater, there are minerals in the water source, and scale will be formed after the water heater is heated, so there will be dirty things, so the water heater should be drained and cleaned regularly to ensure the service life.

Incorrect. Because opening the sewage outlet at will will affect the tightness of the water heater and easily cause safety problems.

The drain cannot be opened casually: disassembling the drain once is not as simple as screwing, it is more troublesome; Before opening the sewage outlet, we still need to do some preparations; In addition, frequent dismantling of the sewage outlet will cause a certain degree of damage to its structure and sealing, reducing its service life.

Not correct, because opening it at any time is likely to hurt our **, and the drain of the water heater can wait until it's almost full.

It is incorrect, and sometimes if it is opened at will, it will destroy the structure of the water heater, and it will also affect the heating work in the future, so you must understand this structure.

Right. The water heater should be turned on to discharge some sewage after being used for a period of time, but some methods need to be mastered.

This is inaccurate. Because if it is often opened casually, the sealing of the drain port is not particularly good.

The practice is incorrect, the average person will not open the sewage outlet for several years, and try not to open the sewage outlet, just open it when cleaning.

This practice is very incorrect, it is easy to burn yourself, and it is easy to break the water heater.

The main function of the drain is to discharge sewage, and when the drain is opened, the water in the tank inside the water heater can flow out from here. Limescale, for example, can also flow out of here. Most people won't let the water heater drain on its own after opening the drain, it is troublesome to turn it on, and the effect of automatic draining is very limited, you can take advantage of the opportunity to open the drain to buy some limescale cleaner to clean the inner tank of the water heater.

This cleaning method is more convenient than disassembly and cleaning, but the effect is not as good as disassembly and cleaning. This can be seen as a maintenance method. Doing this simple cleaning on a regular basis can completely eliminate the need to disassemble the machine for cleaning.

The effluent outlet is usually connected to an important component called a "magnesium rod". The function of the magnesium rod is to prevent limescale from corroding the inner tank, but it will cause losses in use, so it needs to be replaced regularly. Replacing a magnesium rod is very simple.

It attaches directly to the lid of the drain. By opening the blowdown, you can easily remove the magnesium rod and replace it yourself.

After cutting off the power supply, cut off the water supply valve and hot water outlet valve of the water heater. Then find the instructions for the water heater and start looking for a place called a pressure reducing valve. Operate carefully as prescribed and open the pressure reducing valve.

The process of using the hose to lift the internal water is not smooth because the pressure reducing valve is very small, so if the flax water is full, it will take about 2 hours to slow down. When there is no water coming out, the cold water can be opened to enter the water valve, the lining can be rinsed with fresh water, and then water can be added from the pressure reducing valve, which can be repeated.

If the heating rod is broken, you can't boil the water; The temperature controller is damaged and the temperature cannot be controlled, resulting in the water temperature being too high or too low. In short, it is not the same as the set temperature. Close the inlet angle valve, which is generally installed directly below the water heater.

If you can't tell which one is the water inlet, turn off both angle valves. Electric water heaters usually bring water in and out of the water. Hot water at 50 or 60 degrees is enough to burn someone.

It's safer to cut off the water heater in advance and keep it 24 hours a day.