CATDOLL : CATDOLL: Why are there little red bugs in the water tank?

Why are there red bugs in the water tank?

The red bugs in the water tank are water earthworms. Direct water supply users below the third floor discovered red nematodes in the water because the temperature is high and the humidity is high in summer, which is suitable for the growth of red nematodes, and they survive in large numbers in sewers and pipes.

Water earthworm, also known as red threadworm and red nematode, belongs to the aquatic oligochaete among annelids. Its body color is bright red, flesh-red or orange-yellow.

They mostly live in sewer sludge that discharges sewage or wastewater (usually slow-flowing black sludge), densely packed on the surface of the sludge, with one end fixed in the sludge and the other end sticking out of the mud and trembling in the water. Once disturbed, they immediately retract into the sludge.

The nutritional value of water earthworms is extremely high. They must be rinsed repeatedly in clean water before feeding. They are a favorite bait for goldfish and koi, and are also the main bait for eel fry and young turtles. They are often used for fishing in Sichuan and are the best bait.

When the tide recedes in Shanghai's Huangpu River, a large number of water earthworms grow in the mud on the shore. Every spring and autumn, people catch them in large numbers. When exposed to strong light and high temperature, they die in large numbers and emit a foul odor. The appearance of water earthworms often reflects organic pollution in some aspects of the water quality. In addition, because they carry a large number of bacteria, they can also cause symptoms such as diarrhea.

Additional information:

Hazard treatment:

Experts believe that red nematodes can cause gastrointestinal discomfort in people due to the bacteria they carry and their excrement, leading to symptoms such as diarrhea, nausea, and vomiting. At the same time, as an "indicator organism" of unclean water, its existence shows that tap water has been contaminated by organic matter at some point in the transportation process.

Using high-content cyhalothrin, such as 5% Ruigong, can effectively eliminate the damage caused by red nematodes. Usage method:

Pour 100-200 ml of Ruigong (one mu of dosage) into the sprayer for dilution, remove the sprayer gasket, and spray the diluted solution directly into the key areas of red nematode damage. Spray again after 4 days to effectively prevent and eliminate the damage. This method cannot be used in rice field fish farming areas.

When you turn on the faucet in the morning, you may find red nematodes in the water. Users who use water tanks or other secondary water supply facilities (such as reservoirs) may find red nematodes in the tap water. The main reason is that the water tanks or other secondary water supply facilities are poorly managed and fail to be cleaned in time, causing pollution, which is very likely to breed red nematodes.

It is necessary to strengthen the management of secondary water supply facilities such as water tanks, and timely carry out maintenance, cleaning and disinfection to prevent the growth of red nematodes in the water. Users living in bungalows and low-rise buildings should pay attention to the hygiene of the water environment, keep the tap water pool clean, and try not to place wet objects such as brooms and rags next to the tap water pool at night. At the same time, the tap water pool drain can be plugged with a plug.

Users who have the conditions can also disinfect the sewer pipes frequently to prevent red nematodes from crawling out. According to the relevant regulations of the national health and epidemic prevention department, the water tank must be cleaned twice a year and disinfected once.

Generally, disinfection should be carried out at least once every six months to prevent the growth of red nematodes in the water. If red nematodes appear in the water, bleach can be used to kill the insects. Users who have the conditions can also frequently use "84 disinfectant", bleach, bottled household disinfectants, etc. to disinfect sinks, sewers and other long-term damp areas to prevent red nematodes from crawling out.

In addition, if the household solar water heater is not used for a long time, the water should be completely drained, and it should be disinfected and cleaned before reuse, otherwise it may breed red nematodes. Therefore, the owner should ask the property management company entrusted by him to clean the water tank in time to ensure the water quality.

Reference: Baidu Encyclopedia - Water earthworm

The possibility of red bugs in a water storage tank is as follows:

1. Daphnia.

2. Red nematode.

3. Chironomid larvae.

These red bugs mainly come from:

1. Bring in the larvae or adults of the insect when releasing water.

2. Unkilled insect eggs will hatch under certain conditions.

3. The adults fly into the aquarium and lay eggs.

Please choose the appropriate disinfection method according to the purpose of water storage.

It's red nematodes. Generally speaking, it's impossible for red nematodes to exist in clean and disinfected water. Users who use water tanks or other secondary water supply facilities (such as reservoirs) above the third floor have found red nematodes in their tap water. The main reason is that the water tanks or other secondary water supply facilities are not well managed and not cleaned in time, causing pollution. The earthworm eggs deposited in the water tanks hatch and develop into red nematodes. The phenomenon of red nematodes in the water of direct water supply users below the third floor is mainly because the temperature is high and the humidity is high in summer, which is suitable for the growth of red nematodes. Red nematodes live in large numbers in sewer ditches and pipes. Every night, they often crawl out of the sewer pipes, crawl along the pool wall and the tap water pipe wall into the outlet of the user's tap, and gather into a ball. When users use water for the first time in the morning, they flush them out, creating the illusion that red nematodes are flowing out of the tap water. Secondly, if the faucet has been turned on for a period of time and red nematodes are still flowing out, it may be related to the aging and rusting of the water pipes and the breeding of microorganisms in the water, reminding users to replace indoor pipes. To prevent red nematodes, the key is to clean and disinfect secondary water supply facilities such as water tanks in time, strengthen the management of secondary water supply facilities such as water tanks, and carry out maintenance, cleaning and disinfection in time. Generally, disinfection should be carried out at least once every six months to prevent the growth of red nematodes in the water; if red nematodes appear in the water, bleaching powder can be used to kill the insects; users living in bungalows and low floors should pay attention to the hygiene of the water environment, keep the tap water pool clean, and try not to place wet objects such as brooms and rags next to the tap water pool at night. At the same time, the tap water pool can be plugged with a plug; users with conditions can also frequently use "84 disinfectant", bleaching powder, bottled household disinfectants, etc. to disinfect long-term wet areas such as sinks and sewer pipes to prevent red nematodes from crawling out. In addition, if the household solar water heater is not used for a long time, the water should be completely drained, and it should be disinfected and cleaned when it is used again, otherwise it may breed red nematodes.

Clean the tank frequently, keep the water clean and flowing more

What genus does red worm belong to?

Water flea (Daphnia) Invertebrate, Arthropoda, Crustacea, Branchiopoda

Class, Daphnia family. Abbreviated as "Daphnia" and "Daphnia family". Daphnia is commonly known as "red worm", which is the general name for cladocerans. It is small, oval, flattened on the left and right sides, and only 1 to 3 mm long. It has two shell valves outside the body, and there is a ridge at the connection on the back. There are sharp spines (shell spines) extending from the back end. The head protrudes out of the shell, and the snout is obvious and sharp. The compound eyes are large and obvious, and can rotate continuously. There are simple eyes between the compound eyes and the first antennae. The first antennae under the snout are short and cannot move; the second antennae are well developed with eight or nine swimming bristles. There are 3 to 4 ventral processes on the dorsal side of the abdomen, and the front one is particularly developed and extends to the front. The posterior abdomen is slender and gradually tapers backwards.

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