In cases where a centralized water supply is not available, a water well is an excellent alternative. This is a constantly available source of water, both for irrigation of the site and for domestic needs. However, sometimes the well can become clogged and stop working.
The reason for this may be the initial incorrect installation of the equipment, so only a well workover can help. But, much more often this happens due to a simple blockage caused by rare use. Some, in such cases, call specialists, but their services are expensive. However, it is quite possible to deal with the blockage with your own hands, especially since it does not require special skills.
Causes of water clogging
One of the most common causes of clogging is the irregular use of the well. This is especially true for those who use this source of water only in spring and summer, and live in the city during the autumn and winter months. During downtime, sediment from particles of rust, silt and sand accumulates at the bottom, which clogs the filters.
The second most common cause is external pollution. Debris gets into the wellhead, edges crumble and other factors.
In third place are two possible causes of clogging at once. One of them is a filter smaller than the size of the pipe. In this case, the pump cannot be lowered to the required level and the filter gradually becomes clogged. A similar situation can be observed when using rotary pumps, which can supply water from a depth of no more than eight meters.
Well cleaning options
There are several main ways to clean the well, each has its pros and cons.
- Using a conventional vibration pump is the easiest way, but it can lead to premature wear of the device. This is due to sand particles, which can significantly reduce the life of the piston and shutoff valve.
- Cleaning the well with a bailer is the most time-consuming method, but it guarantees good results.
- Swing Cleaning — Requires two pumps, so this method is the most expensive.
- Using an airlift — the method consists in cleaning the barrel with compressed air.
Cleaning and disinfection with acids
It is believed that the best way to clean the water well is with the help of chemicals. The most popular are various acids, such as hydrochloric acid solution.
However, self-cleaning a well with such substances is not an easy task. The fact is that without special training, such actions can damage the equipment, as well as harm your health. Also, not the last role is played by the fact that getting enough of the right acid is not the easiest thing. Therefore, washing with chemicals is the lot of professionals. The methods presented below are no less effective, but do not require special skills.
Cleaning a well with a pump with a lower intake
This method, which is known as well reaming, is usually applied immediately after drilling is completed. However, it is also well suited for subsequent cleaning.
If you have a drainage or fecal pump, then the process of cleaning the well is greatly simplified. These devices are especially good because they can pass fractions up to three centimeters long through themselves. For cleaning you will need:
- Injection hose.
A small metal rod or bracket, securely fixed to the bottom of the device, will be a good help — they will break dense layers of pollution.
You should act in this order:
- Mounted on a cable (preferably steel), the pump goes down until it touches the pollution.
- The pump is connected to the power supply.
- Slightly shake the pump up and down to loosen the sediment.
An indicator that the blockage is being cleared will be the flow of water with mud and silt supplied by the pump.
If there is no apparatus with a lower intake, and the well is shallow, you can get by with a conventional vibration pump, such as the “baby”, to which the pump is connected.
In this case, it is to the pump that the impromptu “baking powder” will be attached.
The procedure is the same as above. It is worth noting that the device must be constantly in the water so as not to overheat.
It is also very important not to let go of the cable and monitor its tension. It is not uncommon for sand accumulated at the bottom of the trunk to turn into quicksand. As a result, the surprised owner discovers that the pump is stuck in the well.
Well flushing with two pumps
Cleaning wells with the help of two devices is quite expensive, but it is highly efficient. In addition, it works by washing away sand and silt particles. You will need:
- Barrel for water, volume not less than two hundred liters.
- A bucket with small holes drilled into it.
- Submersible and centrifugal pumps.
- Two hoses.
- A couple of pieces of reinforcement.
The procedure is as follows:
- The submersible pump is lowered down and fixed at a height of about fifty centimeters above the blockage.
- The discharge hose is lowered into the barrel, after which it is filled with water to the very top.
- A bucket with holes is installed in the barrel, and a centrifugal pump is already in it.
- On the discharge hose of the centrifugal pump, with the help of clamps, pins from the fittings are installed. It is necessary that they protrude ten to twenty centimeters beyond the edge of the hose. After that, the hose, with an impromptu baking powder, sinks to the bottom.
- Both devices must be turned on, and the hose with fittings must be rocked up and down. At the same time, the blockage will be cleared due to the pressure of water and the mechanical destruction of the resulting plug.
It is worth monitoring the water level in the barrel, for which periodically turn off or turn on one of the pumps.
Using an Airlift for Flushing
This method of removing blockage is to use the so-called “airlift”, from the English “air lift”, that is, “air lift”. It works due to the fact that water, with the help of air, begins to flow upward, and this draws sand and silt from the bottom.
For such cleaning you will need:
- Air compressor twelve atmospheres.
- Water in large quantities to create the necessary pressure.
- Metal pipe, six centimeters in diameter and one meter long. In it, at a distance of 25 centimeters from one edge, an outlet for the duct is installed.
- air hose.
- water hose.
The principle of the airlift: water with the help of air goes up, dragging sand and silt with it.
The procedure is as follows:
- The air hose is attached to the compressor and to the outlet.
- The second hose is fixed at the opposite end of the pipe.
- This design descends into the lower part of the trunk, plunging several centimeters into the silt. It is very important that the end with the duct is pointing down and not up.
- The second hose is brought out.
- After that, the well should be filled with water and maintain its level in order to create the necessary pressure.
After turning on the compressor, water will be circulated, which will wash out the silt and sand. As a result, the dirt will be brought out.
Removing blockage with a bailer
Cleaning wells in this way is one of the simplest, you only need a bailer and a steel cable. However, it requires significant physical effort — this is manual labor.
The bailer is a special tool designed specifically for cleaning and you can easily buy it. Although, if desired, it can be made by hand, since there are many variations of this device.
Cleaning the bailer requires considerable physical effort. This is manual monotonous work.
Below is one of the most entertaining and enduring examples:
- You need to take a piece of pipe, sixty centimeters long.
- Inside the pipe, near its end, a disk is welded, in which there should be a hole with a diameter two times smaller than the diameter of the pipe itself.
- At this end of the pipe, teeth are cut that will break the blockage.
- A metal ball is placed in the pipe, with a diameter of three quarters of the diameter of the pipe.
- A metal mesh is welded on top of the pipe.
- A handle is installed to which the cable will be attached.
After that, the bailer is fixed on a cable and lowered into the wellbore. Then comes the time of monotonous work — it is necessary to lift and throw down the bailer, periodically pulling it up and cleaning it from the accumulated dirt inside.
Cleaning occurs due to the fact that during the descent, the metal ball will fall a little more slowly. Thus, dirt, along with water, will have time to penetrate inside the pipe before the ball closes the hole.
Prices for work and materials
Consider the approximate cost of the materials that we need. In almost all cases, you will need a metal cable, which costs about two thousand rubles per coil:
- A drainage pump with a lower water intake costs an order of magnitude sixteen thousand rubles.
- The centrifugal pump costs about seven thousand rublesand vibrating in the area two thousand. A barrel of water will cost the amount, from six hundred to a thousand rubles.
- The compressor will cost no more than six thousand rubles. The pipe will cost 200–3 dollars.
- Already finished bailer is in the range from ten to twenty thousand rubles. Manual production, with tools, will cost three thousand rubles. Or, only at the price of electricity, since there are manufacturing methods that require only a drill. Pipes, if desired, can also be found old, as long as they are strong enough.
All these methods are quite simple and do not require large finances — almost always the necessary tools are at hand. Moreover, it will cost much less, not to mention the time that will have to be spent waiting for repairmen.
It is almost always possible to deal with the blockage on your own and for this you do not need to call specialists. However, you need to be careful, because repairing wells is an expensive pleasure.