A few days ago, the sewer of the kitchen at home was blocked. I spent a lot of energy to buy and borrow equipment, check the materials and learn the method, and finally solved it successfully, and recorded it for the reference of netizens.
The blockages that cause the blockage of kitchen sewers are divided into two categories: organic matter and inorganic matter. Before solving the problem, it must be clearly distinguished. Different causes of clogging use different solutions.
In general, the clogging of the sewer in the kitchen sink is caused by organic matter such as food residues and grease. When the temperature of leftovers and grease is not high, it is easy for these items to remain on the wall of the sewer pipe. Over time, the internal circulation diameter of the water pipe is When it becomes smaller, the flow rate of the water becomes slower or even blocked, and when the water flow becomes slower, it is more likely to solidify and aggravate the blockage because the grease cannot be washed away.
Through my tossing research this time, in fact, this situation is the easiest to solve, and it can be solved by using common alkaline dredges.
The principle of the dredging agent is that the alumina particles and sodium hydroxide dissolve in water, and the reaction chemical reaction decomposes the blockages such as grease, hair, leftovers, etc., and this alkaline solution just does not react with common PVC pipes.
If the pipeline is only running slowly, you can wait for a part of the water to flow down, pour in the dredging agent, and let the dredging agent react directly to the blockage.
If the pipe has been “drip-tight”, it is best to use something like a rag to get some water out of the pipe, and then add a dredge, so that the dredge solution can reach the blockage.
Of course, if there is a U-shaped deodorant inspection port under the vegetable sink, you can try to unscrew the cover of the U-shaped pipe. Maybe you can physically remove the congestion without adding a dredging agent.
It is emphasized here that the first point of using a dredging agent is to pay attention to safety ! The dredging agent is a strong alkaline substance, and it is highly corrosive when it touches the skin in contact with water, so it is best to wear rubber gloves, masks and goggles when operating, and do not stare when pouring the dredging agent. Looking at the mouth of the pipe, there is a pungent smell and heat gushing out when a chemical reaction occurs inside. In addition, aluminum pipes and corrugated hoses cannot use such dredging agents.
When using this dredging agent, you should also pay attention not to add too many doses at one time. Some people take it for granted that “the more the better”, but this is actually very dangerous. Excessive dosage will generate too much heat, and plastic (PVC) pipes are easily scalded, especially at the interface where hot melt is used or the raw material tape is tied, high temperature will cause damage to the line.
The correct way to use it is to put in a small amount and several times, put about 100g each time, wait for the reaction for about 30 minutes, rinse it with warm water, and then put it in again.
This blockage in my house should be the reason for the solidification of the grease. In the end, about 200g of dredging agent was used to successfully solve the problem.
Later, I also learned that if multiple use of dredging agent fails to solve the problem, it may be the blockage caused by inorganic substances (inorganic glass, cement block, metal block), and the dredging agent cannot be dissolved.
In this case, if it cannot be cleaned by opening the U-shaped tube cover, it is my personal recommendation to hire a professional.
Since I didn’t have a dredger in my house before, I thought my hands-on ability was okay before using it. Attempts to use household sewer wire grabs and hand-cranked dredging springs are all due to the insufficient “drilling” ability of the tools and the inability to make more than 90-degree turns along the pipeline and fail to allow the wire springs to reach the congestion.
Professional pipeline dredging personnel generally have high-power electric pipeline dredging machines, and it is easier to solve problems with the help of this machine.
However, when hiring professional dredging personnel, they must be hired through reliable channels . As far as I know, there are many routines of slaughtering people and corrupting money when dredging the pipeline. Hundreds, as many as thousands of dollars are available.
A common routine is that when they are about to get through, they persuade people to use their professional potion. The unit price of the potion is only 10 yuan per catty, which does not sound expensive. As a result, once they agree, they will pour a few dozen catties and then pay the bill. A pull, hundreds of dollars.
There is also billing based on the length of the pipe when dredging. Their algorithm is not visible to the naked eye in the kitchen. It is easy to count the length of the sewer pipe in the wall, and the bill is also a few hundred dollars.
These non-thick people take advantage of people’s anxiety about blocked pipes in their homes. As long as they call the door, the price will not be low. Therefore, when hiring professional pipe dredging personnel, you must find a reliable one.
We live at home, and no one wants to block the sewer, so while we usually take care not to pour the grease residue into the sewer, we can also perform regular “maintenance” on the sewer. Usually, we buy the dredging agent mentioned above at home, and leave it to the sewer in about two months. Pour some into the water pipe to clean up the pipe to avoid blockage caused by accumulation.
As for the brand of the dredging agent mentioned above, it is not recommended. When purchasing, look for the ingredients of alumina particles and sodium hydroxide. Generally, a bottle of about 300g is priced at 7-8 yuan (market price in 2022).
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