The presence at the summer cottage or in the yard of a private cottage wells or artesian wells significantly increases the living comfort, as they suggest the possibility of continuous supply of the house. Naturally, this will require the installation of a special pump, which will enable the pumping of water from the well. All water pumps for wells differ in their technical characteristics, able to work in wells of different depths, to pump different quantities of water and have different requirements to the quality of the water, allowing a certain amount of solids (sand, clay).
There are some important points that you just must consider when selecting a pump, they will acquire the most optimal model that is able to provide the current demand for water.
- Characteristics are directly well or wells. The main «parameter» is the maximum amount of water, which he «issue» for a certain period of time. Depends on the power of the device, as well with a small amount of water coming in does not make sense to install a powerful, productive device if the water level is constantly low.
- Characteristics of the device. Depends on what kind of pressure he will be able to provide, and how many points of analysis he will be able to serve.
- Features of future water supply and its principal tasks. You need to decide when will be the intake – year-round, or only during the summer period, the type of the future water – year or permanent. Also pre-determines the need for additional automation to maintain the required pressure in the pipeline, and equipment – for example, accumulator.
If you select a pump for the well at the cottage is not so difficult, the process of selecting equipment for fixed supply at home simplicity is no different. As a rule, requires the installation of related equipment, insulation of external piping and careful calculation of the capacity and performance of the pump, which can be divided into 2 main types – external (surface) and SEM. Each of these types has both advantages and disadvantages.
Some of the details of the choice of powerful and economical pump can be seen on video
Vibration submersible pumps for wells are the most popular for seasonal and intermittent water supply can even be used in shallow wells or for water intake from a natural pond. Most of the models allow certain content in the pumped water solids. However, insoluble impurities reduce the lifetime of the device and to protect the pump it is advisable to use special filters that are installed on the inlet (you can easily make yourself).
The most frequent area of use of such pumps becomes a temporary water supply from small wells (for irrigation, for example). Unlike other modifications, this is the best pump for wells with low water level, because there are two modifications – with the upper and lower water intake. Option with a lower fence will allow you to use all the water from the well, but the model with the upper fence is guaranteed protected from overheating during operation, as always, remains completely in the water which serves for cooling. The body of these pumps are made of materials not subject to corrosion – aluminium or stainless steel. The performance of such devices can be up to 430 l/h at a head of 40 meters.
A fairly wide range which able to provide effective water lifting from deep wells, and the models without floats are often used for drainage of the large wells with sufficient water level. Such a submersible pump for the well can be used not only for periodicheskogo water a small amount, but the organization year-round water supply in a private house/cottage. Of course, the well must meet certain requirements, because the pump was designed as a borehole, namely:
- the depth of the well must be sufficient to ensure that under the pump remained at least 1-1. 5 meter of water, and about the same from the top;
- in the well should not be fixed the marked decrease in the water level;
- the water should be clean, with low content of suspended particles.
To accurately answer the question of how to choose a pump for a well, you should take into account two main parameters.
- Head, i.e. the distance from the pump to the end point of analysis of water (tap).
- Productivity, i.e. the amount of water pumped per minute.
Among centrifugal submersible pumps are to be separately distinguish the model, standard equipped with a float switch. The installation of such pumps is especially important in wells, not wells, because of the large distance between the walls of the well and the pump body implies free movement of the float, and in case of a critical decrease of its quantity, omission of the float blocks the pump. This makes it impossible for it to work «dry», and consequently, failure. Depending on the specific modification. Submersible model with float can provide pressure up to 150 metres, with a performance up to 60 l/min.
As drainage pumps for pumping water from a well, have little power, they can only be used for episodic water flow for which suitable shallow wells or surface water. Depending on the specific modifications, it can be calculated on paracatu water containing considerable amount of sand, clay, silt and other suspended particles. This can be used as a mud pump to clean the wells, remembering that the allowable values of water pollution are different for each model.
Due to the simple design, low weight and low cost, such models are quite common among gardeners because it is easy to bring and take without leaving the country. It is quite natural that the drainage options can be used in deeper wells, but, as a rule, the capacity of the pressure from such models do not exceed 10-15 meters, which will not allow you to install a pump in a deep well.
If the question arose, what surface to select the pump for the well, you should know that if it is his year-round use, the installation must be carried out only in a warm room, the well should be insulated, as well as the water main leading to it. The pump suction shall be located in deep water, below the freezing point. All surface models can be divided into two groups:
- vortex apparatus, operating independently or in conjunction with additional equipment;
- the pumping station is a complex that includes the pump, accumulator and control unit.
Both of these species can be used for the organization of a permanent system of water supply of a private house, but the most convenient to use the pumping station. They create and maintain a constant pressure in the water system due to the accumulator, the capacity of which may be different. When you open the tap when the water pressure is reduced below normal, triggered automation, starts the pump and the accumulator is refilled with.
Such a system can be installed literally in a single day, and unlike the deep-well pump for the well, will not require the use of additional equipment. Despite all of the convenience stations, their use is somewhat limited in the fact they are not very deep suction, and application is possible only in deep wells.
In the case of deeper wells or wells, and the inability/unwillingness to install a submersible modifications for water supply, especially seasonal, you can use a surface vortex pump, supplying water directly to the water supply. This decision is justified to ensure watering the garden, for lawns, greenhouses, vehicles, etc.
Installing the selected equipment in the well is complex and, mainly, can be carried out with their hands. Thus, special attention should be paid to the pipeline through which water will be supplied. After you have determined which pump is better for a structure of a specific type, you should choose a suitable hose. If you are using hand pumps for boreholes and wells, or vibration, which is lowered only as needed, and then extracted, you can use a simple rubber hose fixed at the outlet of the pump yoke.
If you install a centrifugal model, which is expected to draw from the well only for maintenance, would be more appropriate to use a pipeline of hard PVC or metal – more difficult installation with more than kompensiruet reliability and long operating life.