Previously, work to clean the well bottom was carried out exclusively by hand using buckets and ropes. Now this problem helps to handle pumping equipment. With the use of technology, the cleaning procedure is much easier and much faster. Do you agree?
We will tell you how to find the perfect well cleaning pump that can pump water with sand and fine gravel. You will learn from us if the well or drainage model is better to rid the mine of silt and mineral deposits. You can choose the most effective equipment.
The article proposed by us describes in detail the technology of cleaning the well shaft with different types of pumps. For visual perception of the information attached to it are diagrams, photo clips, video instructions.
The content of the article:
- Drainage pumps and their capabilities
- Pump selection for performance and head
Types of submersible pumps
- Submersible pumps with centrifugal mechanism
- Installing a drainage pump: step by step instructions
- Vibratory submersible pumps
- Selection of a hose for pumping water
- Connection Features of Submersible Pumps
- Cleaning a heavily silted well
- Rules of operation of the pump when cleaning a well
- Browse popular models
- Conclusions and useful video on the topic
Drainage pumps and their capabilities
In the process of intensive operation of the well, silting of its bottom occurs, which leads to turbidity of the water, reduction of its flow, and the appearance of an unpleasant smell. In order for the water source to always remain in a usable condition, it is necessary to periodically clean its bottom from sand, clay and other solid impurities.
It is recommended to clean the wells once every three years. With the exception of structures excavated on fine sands that need annual cleaning. Private hydraulic structures are cleaned with drainage pump - devices endowed with great functionality.
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Drainage pumps - equipment demanded for cleaning the well, adapted for pumping dirty water
For pumping thick bottom sediments, the drainage is used together with a vibrating pump to stir up sediment.
Drains are equipped with a float warning device that turns off the pump when the water level drops below the allowed limit.
To clean the well, the drainage pump is lowered on the cable to the bottom of the shaft, removed at the end of the procedure.
Drainage in cleaning the well
Cleaning the well with two pumps
Pump float mechanism
Drainage dive into the well
Drainage pumps are able to cope with the pumping of clean and turbid water from wells, flooded pits, pools, cellars, basements. The pump is also suitable for prompt elimination of the unpleasant effects of utility accidents.
In addition, the drainage can be used to ensure the continuous circulation of water in garden fountains, ponds and other artificial reservoirs.
Domestic drainage pumps can pump dirty water with particles up to 35 mm in diameter
In order to choose the optimal device for technical parameters, you need to clearly understand what kind of water, dirty or clean, you will have to work with pumping equipment. By pure water it is customary to mean a liquid with inclusions not larger than 5 mm in size.
Drainage pumps for pumping clean and dirty water are different:
- the diameter of the discharge pipe;
- diameter of suction opening;
- material taken to manufacture parts of the device.
In dirty water can be solid particles up to 35 mm in the cut. Next, you need to determine the value of the total volume of pumped water.
It is also important to find out the depth at which it is supposed to organize water intake, as well as to take into account the composition of the bottom filter - what size gravel was used for its design.
In addition to cleaning wells, drainage pumps can drain submerged basements, stimulate the circulation of water in artificial reservoirs.
Pump selection for performance and head
In addition to water quality to the most important parameters selection of drainage pump include its performance and pressure. Under the capacity to understand the amount of water that the pump is able to pump in a certain unit of time.
Typically, the performance of pumping equipment is measured in l / h or m3 / h, which respectively means liters per hour or cubic meters per hour. This technical parameter shows how quickly the device will be able to clean the well from contaminated water.
In order to choose a pump for cleaning the well, you need to know the depth of the water intake and the composition of the bottom filter
Head is a measure of the height of the water rise, measured in atmospheres, bars and meters. This indicator of drainage pumps is usually small, since water is pumped out from a shallow depth. Do not forget about the ratio of the vertical and horizontal pressure of 1:10.
For example, if you are pumping water from a well 8 m deep and moving it a distance of 10 m along the the ground hose to take it beyond the boundaries of your site, then the pressure at the pump must be at least 9 meters
It should also be remembered that, depending on the height of the lift, the pumps will operate with a different level of performance. Graphs of the dependence of both of these values can be found in the instructions attached to the device.
Types of submersible pumps
For pumping water, owners of suburban plots use submersible pumps, which can be vibratory or centrifugal. The models differ in the way of water absorption, therefore, the quality of the latter plays an important role in the choice of pumping equipment.
The fact that water is pumped out in the well indicates a float, thanks to which the equipment does not work “dry”
Submersible pumps with centrifugal mechanism
Models in which a wheel with blades is used as a suction device are called centrifugal. This design feature affects the increase in pump performance, and also prevents the ingress of abrasive particles in the pumped well water.
Water chambers and centrifugal wheels, depending on the model, can be made:
- of steel;
- from high quality polymer.
Also, a distinguishing feature of submersible drainage systems is the presence of a float switch or an electronic switch in their design. Devices with a float switch are more common, because they are simpler, cheaper, and most importantly, more reliable. The switch is needed in order to automate the process of pumping water.
In some models of drainage pumps used centrifugal mechanism. Before buying them, you should find out if the pump can pump abrasive particles.
A float is a small sealed container within which a block of contacts is located. By reducing the water level float mechanism gradually lowered until it reaches acceptable limits. At maximum depth, it turns off the engine, preventing it from running dry. Work "dry" leads to the failure of the pumping device.
The body of the drainage pump should always be immersed in a liquid, as water helps to cool the operating mechanism. Water also acts as a lubricant for rotating parts.
Installing a drainage pump: step by step instructions
Before starting work for the installation of the pump, they determine or arrange a flat platform so that it functions in a strictly upright position, then:
- A hose is connected to the discharge nozzle using connecting elements for fastening.
- If the model has a float switch, a check valve is installed on the pressure line.
- A device equipped with a three-phase electric motor is checked to ensure that the centrifugal wheel rotates correctly.
- Turn on the equipment and immediately turn off, paying attention to the direction of rotation of the pump shaft: clockwise - everything is connected correctly, if not - change the phase in places.
- The pump is connected with a carabiner to the winch cable or to the rope, making sure that the discharge nozzle remains upward.
- The unit is slowly lowered to the bottom of the silted well.
- When working pumping equipment comply with safety requirements.
If there are signs of a malfunction of the equipment, it is necessary to immediately disconnect the power supply and stop pumping.
Vibratory submersible pumps
Vibration-type pumping equipment works by changing the internal pressure, causing fluctuations in the diaphragm. The difference in pressure appears as a result of the magnetic field generated by the passage of electric current through the coil.
Details, resulting in alternate movement under the influence of a magnetic field, raise the water flow up. Vibrating pumps are powered by 220V and consume about 270 W per hour (figure depends on the model power).
Vibrating pumps with upper and lower water intake are installed at different heights from the well bottom
Submersible vibration pumps can be produced with an upper or lower water intake from a well:
- Devices with the upper water intake function without overloads, as they do not heat up during operation due to cooling of the entire system. Also, such pumps do not suck sludge deposited at the bottom of the well, and do not contribute to turbidity of water during the intake. Therefore, it is inappropriate to use them to clean the well.
- Devices with lower water intake, not equipped with automatic and thermal protection system, as the devices can overheat even during short-term work "dry". A mechanical filter is used to protect the mechanisms from sucking sand and sludge. The craftsmen replace the filter with an ordinary iron bucket into which the pump is placed. They lower the bucket with the apparatus into a low debit well and pump water.
Vibrating pumps are durable in operation, since their design does not have rotating elements and bearings, and therefore parts that do not undergo friction do not fail.
When cleaning wells, vibration type pumping equipment can only be used for pumping out turbid water, and sand and silty deposits manually scoop up with buckets, home-made scoops, grab buckets and other devices.
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Vibrating pumps are inexpensive, but have good performance and are suitable for pumping out turbid water.
During cleaning of the well, the vibrator should be regularly disassembled for cleaning and apply lubricant to the system’s contacting parts.
To speed up the cleaning process and improve the quality, two vibration pumps are used: one stirs up, the other pumps
For pumping out turbid water from the well, the vibration equipment can be placed in a bucket in which the pump is immersed in the mine
Inexpensive vibration pump
Care of the vibrating pump
System of two vibration pumps
Dipping pump in bucket
Selection of a hose for pumping water
Hoses or tubes for pumps should be selected depending on the force of the pressure, as well as on the diameter of the cross section of the outlet pipe. The main requirement is that the diameter of the hose must match the diameter of the outlet pipe.
Compliance with this requirement will prolong the service life of the pump purchased and will have a beneficial effect on its performance.
As a flexible hose, you can use a fire hose that is attached to the outlet with a hose clamp. At the edge of the well ring, the sleeve is clamped, and the pump cannot push through the deflated water. The plastic corner to which fire hoses are connected from both sides allows to solve this problem.
After pumping out the dirty water from the well with a bottom pump, it is necessary to collect a bucket and bring it to the surface.
Connection Features of Submersible Pumps
Before lowering the pump into the well, carry out a number of preparatory activities, namely:
- determine the depth of the apparatus in the source;
- fix the hose on the pipe using a plastic clamp;
- thread a nylon cord or steel cable of small diameter into special eyelets on the pump body;
- a special rubber ring is attached to the case, which will protect the vibration pump from mechanical damage in case of contact with the concrete walls of the well shaft;
- An elastic rubber with a length of 0.5 meters is tied to the upper end of the cord to dampen vibrations.
The pump with the lower water intake is placed at a distance of 1.0 m from the bottom of the well, and with the upper one slightly lower - 0.5 m. The cable to which the pump is attached is fixed to the crossbar mounted on the top well. ring. After completing the installation of equipment, connect the pump to electricity.
If the length of the cord is not enough, then it is extended with an additional cable, and the connection must be located outside the well shaft. During the pumping of water, it is monitored for its pressure, avoiding the “dry” running of the motor. After two hours of continuous operation, turn off the pump for 15 minutes to avoid overheating of the electric motor.
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Well pumps are not used in the cleaning of wells, because they are demanding on the quality of pumped water
Water with silt and sand can, in a matter of minutes, disable the pumping system if water with mineralization is pumped above the value specified by the manufacturer.
Centrifugal pumps after cleaning the bottom of the well shaft often fail and can not be restored
Before using for the purpose of pumping disinfected water from the well, it is necessary to check whether the manufacturer permits the transfer of such an environment.
Borehole pumps in cleaning wells
Not suitable for pumping medium
Submersible pump after cleaning the well
Pumping out the produced water
Cleaning a heavily silted well
With a strong silting of the well, the efficiency of using a drainage pump is sharply reduced. The equipment is quickly clogged with sand, and therefore can not cope with the tasks assigned to it.
Some gardeners are advised to use in this case another surface pump, which is under pressure dumps the water cleared of sand back to the well shaft, thereby contributing to the erosion of the bottom sediments.
The method is as follows:
- a barrel or another container with a volume of 200-300 liters is installed near the well;
- a drainage pump is lowered into the well shaft, which pumps out turbid water from the well into the prepared container;
- clean water, settled in the barrel, is sent back to the well by the second pump, and the sand from the bottom of the tank is removed;
- a jet of water discharged under pressure erodes the bottom sand, which, together with water, rises upward into the barrel with a drainage pump, and everything repeats again.
This method of cleaning the well has opponents who consider it economically impractical. In their opinion, it is more profitable to hire a brigade of workers who can go down and scoop up the silt with buckets, lifting it to the surface. If this is not possible, why not try the option with two pumps.
Vibrating pumps are used for pumping dirty water without solid inclusions.
By means of the pump equipment the silted well is easily and quickly cleaned. After pumping out the muddy water, the well is filled with crystal clear, life-giving moisture and begins to delight its owners with tasty cold water.
After cleaning the pump can always be used for other tasks. Cheap vibration models are applied in flushing wells after drilling. During floods and the rise of groundwater, flooded basements are quickly released from the gushing water.
Inexpensive vibration pump for example “Springwell”, you can pump out the pond, clearing its bottom from muddy accumulations. A careful owner will always find a way to increase the efficiency of the acquired equipment.
Rules of operation of the pump when cleaning a well
Choosing the necessary model for cleaning the well, carefully read the instructions. Indeed, some drainage pumps were originally designed for lifting and pumping only clean water that does not contain impurities. The manufacturer warns about this in the description of the technical characteristics of the equipment.
If such devices begin to pump out contaminated water, they will quickly fail. Remember that cleaning of a silted well should be done with a drainage pump that can cope with the intake of contaminated liquid, which has impurities and even small fibers.
With the appearance of stable deposits on the walls and bottom of the well shaft before using the pump you need clean the well by hand, to quickly get rid of dirt and prevent clogging of the working parts of the pump.
Browse popular models
The market of pumping equipment includes models of Russian and foreign manufacturers. Every brand has its fans.
Budget pumps of Russian companies “Whirlwind” and “Kid”Attract affordable price and good performance. German pumps of the brand Wilo Drain, Grundfos, Karcher, as well as Japanese Makita, do not need advertising.
These devices have high performance and reliability over the entire life cycle. When buying pumping equipment, be sure to check the availability of all the components specified in the attached instructions.
Pay attention to restrictions in the application specified by the manufacturer. Remember that the technical characteristics of different pump models may vary significantly, which affects the way they are used.
Conclusions and useful video on the topic
The video provides recommendations for pumping water from the well by a drainage submersible pump and the subsequent excavation of sand with a homemade scoop.
Practical advice: when cleaning wells, the float is tied to a rope or to a cable on which the pump is fixed, in order to pump out water from the maximum possible depth. In this case, of course, the manufacturer’s recommendations for the operation of the equipment are violated, but it is possible to free the well from water almost to the very bottom.
At the end of this video you will see how to use two submersible pumps with upper and lower water intake to clean the well.
After viewing this video, you will learn how to clean the well with a vibration pump, usually used only for lifting clean water.
Drainage pumps are indispensable assistants in the garden and suburban area. These inexpensive devices are easy to use, easy to install and the effectiveness of the result of their use.
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