How to disinfect drinking water in a well. Cleaning and disinfection of water in a well in a country house or plot
We have in the Krasnodar Territory, in many areas the situation with water is not the best. Our summers are hot, and the Kuban Territory, as you know, is agricultural, therefore water is very actively spent on irrigating plots, fields and gardens, therefore, it’s like the proverb “Who managed to eat it” because it usually doesn’t happen in the tap in the summer.
The output here is viewed 2 - the well and the well (read more about the device of the well with your own hands).
The well may already be on the site if you bought it on the secondary market. If it is not there, and you are going to dig it yourself, then the problem of water purity still remains, and this is especially true for the so-called “pools” in our Kuban, in which water is poured, so that later it can be consumed as needed - because the water is not running on the frying street - the result is clear.
And what can we say about the old well, which no one has looked into for years - here the problem of disinfection and cleaning will generally become a priority. But there are also annoying cases when a pet falls into the well or some garbage accidentally gets in, which immediately makes the water in the well unsuitable not only for drinking, but also for household needs.
One-time disinfection and general disinfection of the well.
First of all, the water that already exists in the well (in the old it already exists, but in the new one can be fed) must be pumped out or scooped up. For these purposes, any deep or surface pump is suitable. I am using Kama 10. You can also use the “Malyshok” borehole pump - just in this case I recommend attaching any stick or armature half a meter to the pump body - in this case, when the pump is immersed, it will stop near the bottom at a height that is sufficient to pump out the bulk of the water and at the same time, do not “grab” the slurry and mud that usually occurs at the bottom of the well (the baby burns out very quickly when pumping mud).
As a rule, it is prepared in such proportions: 20-25 milligrams of bleach per liter of water. If you plan to disinfect with pure chlorine, then it will need 4-5 times less per liter of water.
With this solution, treat the walls of the well (you can either spray it, or just “whiten” the walls slightly with a mop or bast on a stick). I recommend after that, let the well stand dry for at least a few hours - the effect of disinfection will be higher.
What's in the old and in the new well, it is necessary to correctly calculate the volume of water contained in it - this must be done in order to maintain the correct concentration of the disinfection solution in the future.
For example, wells made of standard concrete rings are often found. The diameter of their inner space is 1 meter, and the height is 90 centimeters, which means that around seven hundred liters of water will be contained in such a ring. Now just find out the total volume of water by the number of well rings.
Now you can refill the well. When the water is poured to the desired level, pour the solution prepared in this way:
Consistency: 1 liter now take 200 mg of bleach.
Process: Prepare dishes of the required volume, pour the necessary amount of cold (namely cold, because warm water will provoke the evaporation of chlorine) water into it. In water, add the amount of bleach calculated for this volume of water, to prevent the evaporation of chlorine, close the vessel with an airtight lid and mix well. Let the solution bleach settled, and drain the clean top layer of the solution into another suitable dish.
This is the solution and pour it into the well to disinfect it, and then thoroughly mix the water so that it is better dispersed - you can do this with a bucket - just draw water into the bucket, lift it to the surface and pour it back. If the well is very deep, you will have to resort to the help of a pole.
After thoroughly mixing the water, you can leave your well for at least 24 hours, having previously tightly closed the neck of the well (again, in order to prevent the escape of chlorine).
The next day, repeat the entire process of disinfection of the well from beginning to end.
Remember that you should not use well water at this time, that is, during disinfection and cleaning of the well, even for technical purposes - not to mention drinking such water!
After you have carried out the process of secondary disinfection, water should be completely pumped out of the well. If the water still gives off bleach, then repeat the process of filling and pumping water out of the well and do this until the smell of bleach has completely disappeared, after the water stops smelling, wash it with clean water. After that, the water will be suitable for drinking at least a week later, to be sure of this, do a water analysis in the sanitary-epidemiological service of your locality (or the nearest one if it is a summer house or summer cottage).
Daily disinfection of water in the well.
Daily disinfection of water in the well is required when there is a danger of an epidemic of intestinal infections in the area where you live and where your well is located. Then, as long as this threat exists, it is worthwhile to carry out disinfection of water in the well with chlorine daily as a preventive measure.
In this case, the solution is prepared with a decrease in the mass of chlorine by 40-50 times. That is, instead of the 200 milligrams of chlorine taken earlier, it will be necessary to use from two to about 5 grams per liter of water.
The exact consistency of chlorine in water for thorough disinfection of water can be established as follows: prepare three glasses with well water previously poured into them and a one percent solution of bleach. Then, using a medical pipette, add 2 drops to the first, 4 drops to the second and 6 drops to the third glass. Mix the water and close the lid and leave for half an hour if you prepare the solution in the summer and for 2 hours if the process of preparing the solution for disinfection occurs in the winter. After that, just smell the glasses, starting with the first (with the lowest concentration of bleach - so that the scent does not immediately hit) - for the chlorination and disinfection of water, the consistency in which the water smells slightly of chlorine is suitable. If chlorine does not smell of water in any vessel, repeat the process by increasing the dose of bleach.
Calculation of the solution necessary for disinfection of one cubic meter of water.
Suppose a second glass is suitable for chlorination (in which 4 drops of bleach were poured). So, for cleaning and disinfection of 1 liter of water in a well, 20 drops will be required, and thousands of liters - 20 thousand drops. 1 milliliter of a one percent solution of bleach contains 25 drops. Based on this, it is easy to calculate that for daily disinfection of water in the well, we will need 800 milliliters of a chlorine solution with a concentration of 1%.
Such careful calculations of the concentration of the solution are necessary because effective disinfection of well water is achieved only when the exact concentration and ratio of water to the bleach solution are achieved. If the well is flowing, and not the Kuban "pool" - that is, water enters it that replaces the one you take, then the solution must be added constantly.
It contains a number of useful tips for operating wells. We offer extracts from these materials to cottagers, cottage owners and all interested parties.
After the completion of construction or repair of the well, as well as if well water has not been used for a long time, it is necessary to disinfection the well (not to be confused with the chlorination of water in the well!) . Before disinfection, you need to pump out water from the well, then clean it from construction debris and dirt and wipe or sprinkle abundantly with 3% bleach solution. To prepare such a solution, 300-400 g of dry bleach must be diluted in a bucket of water. After the well is again filled to the initial level, a solution of bleach is prepared, it is prepared at the rate of 1 kg of lime per 1 m 3, or 80-100 buckets of water.
Determining the volume of water in a well is not difficult at all. To do this, you need to multiply the area of \u200b\u200bthe water mirror by the height of the water column, which is measured by lowering a pole or rope with a load into the well - the height of the water column is set along the length of the wetted end. The area of \u200b\u200bthe water mirror in the well is determined by measuring its two sides. The calculation of the water volume is as follows: suppose that the water depth in the well is 7 m, and the width of each of the two sides of the log house is 1 m, therefore, the area of \u200b\u200bthe water mirror is 1 m 2. We multiply 7 m by 1 m 2, we get the volume of water in the well 7 m 3, i.e. 7000 liters. Fresh bleach needs 400 mg per 1 liter. Therefore, for 7000 liters, 2,800,000 mg or 2 kg of 800 g are needed.
A solution for disinfection of a well is prepared as follows: bleach is thoroughly ground in a small amount of water, mixed well and allowed to settle. The prepared clarified solution for disinfection is poured into the well and mixed with poles for 10-15 minutes. After this, the well is closed with a lid for 6-8 hours, and then water is pumped out until the smell and taste of chlorine disappear. It is impossible to take water for household purposes at this time.
The effectiveness of chlorination can be judged by smell. If, after disinfection, the water does not smell of chlorine at all, it is necessary to repeat chlorination, approximately halving the dose of chlorine. After the final disinfection, water is pumped out until the chlorine flavor disappears.
Well disinfection should be carried out under the guidance of a specialist. It should be remembered that it is impossible to improve the quality of water only with the help of one disinfection of the well, without preliminary cleaning and repair.
Chlorination of water in a well produced in cases of intestinal infections in the village as a temporary measure until the outbreak ceases.
The dose of active chlorine should be many times less than when chlorinating a well as a structure: not 100-150, but 2 mg per 1 liter of water. However, in order for the chlorination of water to be effective, it is necessary to accurately determine the required dose of chlorine. This is done as follows: 200 ml of water from a well are poured into 3 glasses. In a first glass, pour 2 drops of a 1% solution of bleach (10 g of bleach per 1 liter of water) with a pipette, 4 drops in a second glass and 6 drops in a third glass. The water in the glasses is well mixed with a glass rod, closed with lids and left in the summer for 30 minutes and in the winter for 2 hours. After this time, the smell of water is examined, starting with the glass into which a smaller amount of solution has been added. The necessary dose for chlorination is the one from which the water acquired a faint smell of chlorine. If in none of the glasses the water smells of chlorine, the experimental chlorination must be repeated using large doses of chlorine.
We give an example of calculating the required amount of a 1% solution of bleach to disinfect 1 m 3 of water in a well. Suppose that a faint smell of chlorine appeared in the second glass, where 4 drops of a 1% solution of bleach were added. Consequently, 4 drops of X 5 \u003d 20 drops will go to the chlorination of 1 liter of water. For 1 m 3 of water (1000 l), 20 drops of X 1000 \u003d 20 000 drops will go. Knowing that 1 ml of a 1% solution of bleach contains 26 drops, we calculate that for the chlorination of 1000 liters of water, 20,000 / 25 \u003d 800 ml of a 1% solution of bleach are needed.
The necessary effect of water chlorination in a well can be achieved only with a strict ratio of the dose of chlorine to the volume of disinfected water. Since water from the well is constantly taken and a new one from the aquifer comes in its place, the concentration of chlorine will decrease, therefore, a solution of bleach in the well is systematically added.
An alternative way to disinfect water is.
If you have doubts about the purity of the water source, or if an examination of the water from the well showed that the level of contamination exceeds the permissible norms, it is urgent to think about disinfection. In this case, the cleaning process should be carried out regularly, and in some cases, disinfection must be performed at least once a week.
In our article, we will tell you how to get rid of pathogenic microbes, how to soften water from a well, and also what needs to be done to maintain the source’s sanitary condition.
Well condition assessment
Fluid quality parameters
If you plan to use an already equipped source, then first of all we need to find out whether it is possible to drink water from a well. The easiest way is to interview neighbors: if groundwater is used in adjacent areas and no one has been poisoned, then there is a fundamental possibility .
Now we need to conduct a preliminary analysis.
If you don’t know where to check the quality of water from the well, or don’t want to spend money, then you can get by with “folk remedies”:
- The easiest way is tea control. We select and assert and brew strong black tea. The control portion is prepared on bottled water with low salinity or on imported filtered water. If the difference is very noticeable, cleaning will be required.
- Also, checking the quality of water from a well involves settling in a dark place. Pour water into a closed container and place, for example, in the pantry. In a poor-quality liquid, after 48 hours, a precipitate or an oily film appears on the surface of the water.
- We carry out an express test for mineralization using a mirror. Apply a few drops to the glass and wait for drying. The presence of white, and even worse - dirty brown stains is a very alarming signal.
- Examination of water from a well with potassium permanganate will help determine the amount of organic matter. If the pink solution of potassium permanganate quickly turns yellow, then you should not use the liquid without preliminary cleaning.
And yet, if you do not know how to check the quality of water in a well, it is better to contact professional services, for example, in a SES. The cost of such control, of course, will be quite high, but you will get the most relevant picture.
Work plan
So, a preliminary or laboratory control was carried out, and the water was recognized as fundamentally suitable for drinking after disinfection. What will we need to do?
The water treatment work plan includes the following steps:
- Repair work, excluding the ingress of sediment, soil particles, foreign objects, etc. into the aquifer At the same time, we carry out waterproofing of the casing inside and out, erect the blind area, ensure the tightness of the lid, etc.
Note!
The lid on the neck should be laid even if the roof is installed over the well.
- Cleaning the walls of the mine from mineral deposits, algae, colonies of bacteria and fungi.
- Removal of sludge from the bottom (drainage and / or mechanical method).
- Digging, cleaning and laying the bottom gravel filter.
- Disinfection of walls and equipment used.
- A set of measures for direct disinfection of water.
In the presence of a certain dexterity, this plan can very well be realized with your own hands. This will allow us to significantly reduce costs, because when you contact a company specializing in cleaning, you will have to pay a considerable amount.
Advice!
If you are looking for where to check the water from the well or who to contact for disinfection, in no case do not stop at the lowest price offer.
If there are no problems with disinfection, then the accuracy of the analysis will obviously not be up to par.
A comprehensive study on professional equipment can cost about 5-8 thousand rubles.
Disinfection
Cleaning and disinfection
As we see from the plan, disinfection itself is divided into two stages: treatment of the well and maintenance of the sanitary condition. Below we consider all the methods used for this in detail.
The instructions for processing the well provide for such actions:
- Firstly, we need to pump out or scoop up water, and preferably to the bottom. This can be done using the simplest pump.
Advice!
To prevent the pump, not intended for drainage, from clogging with sludge, we attach a stick about half a meter long at the bottom near the water inlet.
The stick will hit the bottom and prevent the pump from “grabbing” sand and silt.
- The drained well shaft is subjected to mechanical cleaning. To do this, we go down and scrape off hundreds of walls with everything that is scraped off - salt deposits, bacterial plaque, algae colonies, etc. After processing, we should stay clean.
- Next, we arm ourselves with a shovel and collect silt, sand and the upper layer of gravel filter from the bottom. Using a bucket on a rope, we lift the collected material to the surface and put it on a flat platform covered with tarpaulin or non-woven material, for washing.
- After washing, add shungite or silicon to the gravel. These minerals will help soften the water, which is also very important.
Advice!
To facilitate the operation, a drainage pump can be used.
In this case, the sludge is pumped out without first draining the well.
- We inspect the cracks between the casing rings, cover all the cavities discovered with sealant.
After pumping, it is necessary to check the composition of the liquid: if it still gives off bleach, pumping must be repeated. It is also advisable to boil water for at least two weeks before drinking.
Maintaining good sanitation
If the analyzes show that, despite our efforts, the level of pollution remains above the permissible level, we will have to systematically prepare the water itself.
Advice!
The measures described below are also relevant for epidemiological threats.
This is done in this way:
- If you are looking for how to disinfect water in a well, the easiest way is to use bleach. To do this, we calculate the approximate volume of the aquifer of our well in liters (this is easy to do if the level of the water mirror is known).
- Based on the volume obtained, add from 2 to 5 milligrams of active chlorine per liter of water. As a rule, a liter of bleach solution (1%) is enough for high-quality disinfection.
- After adding the reagent, the water must be thoroughly mixed, and only then carry out its selection. The use of an aerator gives good results: due to the saturation of the liquid with oxygen, the activity of chlorine increases, and the amount of the introduced solution can be reduced by at least half.
- Instead of bleach, potassium permanganate or special disinfectant tablets can also be used. They are quite convenient to use (no need to suffer with the preparation of a solution of the desired concentration), but their price is very high. However, if you can afford it - get it safely!
Note!
Similar formulations can also be used to soften excessively hard water.
In any case, it is necessary to constantly monitor the quality of water, and if necessary, immediately carry out a full cleaning.
Conclusion
Information on how to disinfect water in a well will be useful to any owner of a country house. If you perform the above procedures at least once every two to three years, then you definitely will not have problems with water quality, as well as siltation and overgrowth of algae colonies. You can find even more useful tips by watching the video in this article.
Our grandfathers also built wells in the plots, and this was almost the only source of water in the house. Water from the home well went to the expense everywhere: it was watered by the garden, watered by animals, and food was prepared. Today, this method of obtaining water is also used, since the central water supply system is not available in all regions, especially in the villages. But the water in the well needs to be cleaned regularly, otherwise it will not be acceptable for drinking. How often the fluid from the wells needs to be cleaned, and how to disinfect the well with your own hands, we will describe in the article below.
Periodically, water in the well requires disinfection
Why disinfect water in a well
Liquid purification in the well should be carried out regularly, otherwise pathogenic bacteria will appear that will lead to health problems. It does not matter which water filter is in the house, the fluid in the well must be kept clean and periodically cleaned.
Stagnant water in the well has a beneficial effect on the reproduction of bacteria. Since this is an open source, branches, leaves from trees, litter and insects fall into it. All this negatively affects the quality of the liquid. In addition, algae and fungi grow on the walls of the well, which only exacerbate the situation. If well water is rarely used, then this increases the chances of bacteria becoming infected with water.
Water in the well may be contaminated for other reasons. If the tightness of the structure is broken, then microorganisms from the soil get into the water. And if there is sewage near the source, then waste from it can fall into the water, and then it becomes unsuitable for drinking.
Well cleaning
Before proceeding with the disinfection of fluid in the well, a preliminary cleaning should be carried out. This cleaning method is traditional and manual. This stage of treatment is important, because if you do not destroy the organics developing in the construction, disinfection of water in the well will be meaningless. The algae remaining on the walls will affect the growth of bacteria, and the liquid will be infected again.
To clean the well, the following manipulations are performed:
Pumping water from a well is the first step in cleaning it.
- All fluid is pumped out of the well with a pump. At the bottom should not remain more than 15 cm.
- A specialist descends into a cleaned hole, who manually cleans the walls of algae and fungus. All actions are performed gradually, going down. A person who cleans a well should have a spatula with him, with which he scrapes silt, and a bucket into which he collects algae.
- Before descending into the mine, the specialist is tied up with a safety rope, puts on rubber boots and gloves. I put a mask on my face. The bottom of the pit, before the procedure, is checked for gas contamination, otherwise a person may be poisoned.
- In the event that gravel is used for the bottom, then it is collected and lifted up. On the surface, the collected material is washed and disinfected.
After the well is completely cleaned, joints and cracks are checked.
If the liquid washed out the bayonet connection, or cracks appeared, then they are covered with sealant. In this case, a quick-drying putty is used for joints, since the well is not recommended to be left without water for a long time.
Disinfection process
Disinfection of water in a well is carried out by several methods. Do this after they clean the structure. One of the methods of disinfection is the disinfection of the well with potassium permanganate.
To disinfect water with potassium permanganate, you will need:
The potassium permanganate solution is an ideal choice for disinfection
- potassium permanganate;
- a bucket of clean water.
Take one and a half tablespoons of potassium permanganate, pour it into a bucket of liquid, and mix thoroughly until the crystals are completely dissolved. Then the solution with potassium permanganate is poured into the well and mixed there again. In this form, the structure is left for several hours, after which the liquid from the mine is sucked out using a pump. Such a cleaning method is used as a prophylaxis when there is a likelihood of contamination of the source by drains. Potassium permanganate disinfection is a gentle cleaning method, so if you are wondering if it is possible to drink water from a well, the answer is yes.
In addition to potassium permanganate, there is another disinfectant - bleach. To disinfect a well, they take the following actions:
- To clean your well of bacteria, you need to correctly calculate the amount of chemical needed, and for this you need to know the volume of fluid in the structure. Therefore, the following calculations are carried out: the radius of the well is multiplied by the length of the structure from the surface of the water to its bottom.
- After all the calculations, the fluid is pumped out of the pit, and a solution is created with a calculation of 20 g. drug per liter.
- The obtained means are processed the walls of the well.
- Now you should wait until the well is filled with water, and conduct another cleaning. Now the solution is prepared with the calculation of two hundred milligrams per liter of water.
- When the water has accumulated in the well, the prepared preparation is poured into it. But it is necessary to make sure that the precipitate formed during the chemical reaction does not fall into the pit with water from the solution of bleach. Water after making the drug is mixed, and remains in this form for half a day. The well itself at this time is tightly closed so that chlorine fumes do not evaporate.
- After the required time, the water from the mine is sucked out using a pump. This procedure is done repeatedly. They stop pumping water when the smell of chlorine completely disappears.
The water source must not be used for two weeks from the date of disinfection
Even after the smell of chlorine has completely disappeared, you should not drink water from the source for two weeks. After this time, do not take risks, give the liquid for analysis to the laboratory. If the analysis confirms the purity of the water, it can be eaten, if not, then re-clean it.
Preventive actions
So that the well does not become clogged and algae do not grow in it, preventive measures should be taken. This procedure is carried out once a year, in the spring. Prevention should not be ignored, even if the fluid seems clean. For cleaning, you will need potassium permanganate, and the method of disinfection was described above.
And still adheres to the following rules:
- In time to inspect the well frame, and if necessary, carry out repair work.
- Do not ignore preventive cleaning of the well, and conduct it every spring.
- It makes sure that there is no stagnation, and in case of irregular use, pump out water.
- Inspect the joints and, if necessary, carry out repairs. Particular attention should be paid to them when fluid is pumped out of the well, and it is possible to inspect the joints in detail.
- To prevent water from entering the well, a clay plug is created around the shaft. To do this, the well is dug around the entire perimeter from the outside, and covered with clay.
UV lamp - a safe way to disinfect
There is a safer and less costly preventative method for water in a well. To do this, use a specially equipped ultraviolet lamp. The lamp is installed directly above the well. In the presence of such a device, complete disinfection of water is carried out less frequently.
When is a daily well disinfection needed?
In those situations, if in the area where you live, there is a possibility of the spread of infections, it is recommended to carry out daily treatment of the source with water. Such precautions are taken as long as there is a risk of infection.
For such a disinfection of water, chlorine is used, but its concentration in water is lower than with complete disinfection. In this case, the drug is diluted with the calculation of 5 grams of chlorine per liter of water. But it is more correct to calculate the proportions in which the solution is mixed, as follows. You need to pour water from the well into three glasses of water, and take a one percent solution of bleach. Then take a medical dropper and use it to pour bleach into each of the glasses. In the first container, two drops, in the second container four drops, and in the third six drops.
The liquid in the glasses is mixed and covered. If this experiment is carried out in the summer, then the containers under the lid are left alone for 30 minutes. But if such manipulations are performed in the winter, then the waiting time increases to two hours. After a lapse of time, tanks with a liquid get and checked. Water in each glass needs to be sniffed, and it is necessary to begin with that glass in which the content of bleach is less.
Your goal will be to find a glass in which there is a delicate aroma of bleach.
If there is a repulsive odor in all glasses, then the concentration of bleach should be reduced, and the experiment repeated. The same goes for if no glass is fragrant. In this case, the experiment is repeated, and the amount of disinfectant is increased.
Disinfection of water in a well is necessary if you have doubts about the quality of the source. After all, underground water can leak into the well shaft, oil can spill from the pump. In the end, a small animal may accidentally fall.
Of course, all the above cases, as well as other difficult to predict troubles, will lead to a decrease in the quality of the source. And without drinking water a person will not live even a couple of days. Therefore, the well will have to be cleaned and disinfected as soon as possible.
And in this article we will consider both the disinfection technology and the list of drugs with which you can clean the source.
The complete well cleaning procedure is as follows:
- All water is pumped out of the source shaft. And you really need to choose all the fluid, and if the well has a good debit and a high dynamic level, then you need a fairly powerful pump (or two units).
- The next step is to restore the integrity of the mine reinforcing cage. That is, all joints between the rings must be checked for leakage, large cracks should be repaired, and the inner surface of the shaft should be covered with a layer of inert waterproofing. However, the latter option involves high costs, therefore, in most cases, they simply refuse to arrange additional waterproofing.
- Next, you can proceed to cleaning the walls of the well shaft. Scrapes are scraped off the concrete, dirt and algae are washed off.
- A similar procedure is done with the bottom of the well. Moreover, the best way to clean the bottom is to remove the bottom bedding (a layer of sand and gravel), which is simply scooped out with buckets.
- Next, you need to take care of a new bedding. Ideally, a layer of shungite, a special mineral with disinfecting properties, is added to the bottom of the well. If this solution is too expensive for you, then you can limit yourself to washed and dried gravel or gravel.
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The final stage of a full cleaning of the well is the very disinfection. Moreover, it is necessary to process both the water and the walls of the source. Well, how this is done, we will describe below.
How to disinfect a well: process overview
It is well known that disinfection is carried out by treating surfaces or introducing into the liquid a special composition that destroys microflora.
Whiteness - a means for disinfection of a well
Classic well disinfectants are based on chlorine. They are prepared by dissolving 20 milligrams of the base in a liter of water. Moreover, chlorine for cleaning can only be purchased at specialized points of sale of disinfectants.
But what if special equipment is not available? In this case, the “Whiteness”, which is well known to all of us, will help - a laundry bleaching agent based on the same chlorine.
Disinfection of the well with Belizna involves the dissolution of half a liter of standard bleaching agent in a bucket of water. Moreover, in terms of quality and effectiveness, such a solution is not inferior to special means created on the basis of chlorine.
At the same time, Whiteness is not only quite effective, but also the cheapest way to disinfect the walls and contents of the well. After all, the preparations recommended by sanitary doctors are far from accessible everywhere, and disinfection of a well with potassium permanganate - another “household” remedy - will cost much more. Yes, and potassium permanganate itself, due to unhealthy interest in this drug from the marginals, is sold under strict control.
How it's done?
Disinfection of the inner walls of the well is carried out by uniform distribution of the active solution over the entire protected surface. That is, the inner surface of the rings must be treated with a sponge moistened in a disinfectant solution. And process it very carefully, without gaps, before the water rises. Therefore, the best option for processing technology is spraying the disinfectant solution with a spray bottle.
Well, when the mine is filled with water, "White" is poured into it (at the rate of one liter of solution per one well ring). Or pour 200 grams of lime chloride diluted in cold water into a mine.
Moreover, the main condition for disinfection is cold. Indeed, in warmth, chlorine begins to evaporate from the surface and there will be no disinfecting effect. Therefore, after the disinfectant solution is poured into the well, close the cap of the head, having previously tightened the end (upper cut) of the mine with plastic wrap. By doing this, you will prevent the evaporation of chlorine vapor from the mine.
Moreover, before wrapping in polyethylene, the water must be thoroughly mixed using an ordinary bucket for these purposes. It is lowered to the bottom and raised to the surface several times.
In the finale, you simply pump out all the water that has accumulated in the well. And do it several times. Until the water from the tap ceases to "give" chlorine.
Well pollution prevention
As you can see: disinfection of a well is a very time-consuming operation. Therefore, the best way to restore the quality of drinking water is to prevent situations that provoke the need to disinfect a well.
