Residents of high-rise buildings do not think about buying water pumps, pressure stations and other equipment. All this is not necessary, since water comes from the central water supply. But here's what to do for residents of the private sector, where they often have to be content with a well or a well. Usually the matter ends with the design of an autonomous water supply. One of the most important parts is the choice of equipment. Let's talk about how to choose water pumps for domestic water supply and how to be guided in this.
General information
Autonomous water supply is a complex system that consists of a large number of elements. The key component is precisely the pump. Moreover, their types, as well as models, there are a huge number. These are surface and deep pumps of domestic and European production. Of course, such equipment works effectively only in combination. Therefore, you will have to buy a hydraulic accumulator, automation, etc.
The principle of the pump is that it draws water from the source, whether it is a well or a well, and delivers it to the consumer. Usually not directly, but first into the tank. As noted above, today there are a variety of water pumps for home water supply. Between themselves, they differ in technical characteristics and dimensions. It is extremely important to be able to choose the right equipment. For this, it is necessary to be guided by a number of requirements, which we, in fact, will talk about.
About pressure and water supply
When it comes to the time to go to the store and buy a pump, we immediately begin to determine the technical characteristics. But it is advisable to do this before setting off for the equipment. There are a number of pump characteristics that play a large role. One cannot but mention, for example, the supply of water. This feature is responsible for performance. That is how much a pump can drive water over a period of time. Currently, there are models on sale that provide 1.5-9 m 3 / hour. But you must choose a pump based on your own needs. Calculate how much water you consume per hour.
Next is to determine the pressure. This characteristic indicates how far the pump can deliver media. Usually this parameter is indicated in meters. Basically, the closer the water source is to your home, the better. True, it is undesirable to place the well too close to the foundation of the building. In any case, the pressure is lost due to the branching of pipes, resistance, as well as the supply of media to the upper floors. Therefore, it is necessary to take a small margin. Water pumps for domestic water supply have a technical passport, where the pressure is indicated.
Which water pump for home water supply to choose
Here we have a very small selection. But in fact, it does not exist at all. The fact is that there are deep and surface pumps. The former are ideal for a well of small depth, usually less than 10 meters. They are not immersed in water, but are installed on a special platform, or coffer. Deep models are suitable for wells and boreholes with a depth of more than 10 meters.
Any of the above types of pumps can be centrifugal or vortex. In this case, both species have their advantages and disadvantages. More important is how the equipment is managed. It is best to give preference to automatic models, rather than manual ones, as they are more convenient and practical.
About surface and submersible pumps
The surface pump is mounted on the surface of the well. A pipe is connected to the equipment, which sinks to the bottom of the well and pumps out water. The key features of such a pump is that you can install it yourself, in the same way as you service it. But usually the performance of such a pump is not too big, and even during operation it is noisy. Although hardly the latter can be considered a serious drawback. The limiting factor is that there is another drawback - cooling. If submersible pumps are cooled by water from the well, in our case the fan is responsible for this.
Submersible pumps are divided into deep and ordinary. The second ones descend to a depth of 10 meters, and the first - 10 meters or more. Currently, you can find models that are able to work at a depth of 30 meters, but you hardly need such a device. So, the advantages of submersible pumps are that they are efficient, have no problems with cooling and do not freeze in the cold season. It is difficult to repair and maintain them, but given the low frequency of such work, this is not a significant minus.
Centrifugal and Vibratory
The centrifugal water pump for home water supply in comparison with the vortex has several significant advantages. Of course, there is a fundamentally different pattern of pressure force. We have a wheel with blades (like a fan) on the shaft. It creates a vacuum in the shaft area. The pressure zone is located at the ends of the blades. So, centrifugal pumps are very productive, which is why they differ from vibration ones. Performance is limited by electric motor power. In addition, such equipment does not tolerate various water pollution, so you need to install a filter at the inlet, which will increase resistance and reduce productivity.
But the vibration units can work with sandy water without any filter elements. But the vibrations emanating from the equipment lead to siltation of the source, which is not good. In the end, the performance of such pumps is less than vortex (centrifugal).
Automatic or manual?
It is imperative to understand that there are pumps that can operate for a long time without any human involvement. This, as you probably already guessed, we are talking about automatic pumps. They have a large number of sensors: protection against overheating, dry running, liquid level, etc. When a threat occurs, the equipment turns off.
A completely different thing is manual water pumps for domestic water supply. Repair of such equipment, as practice shows, is required much more often. For this simple reason, automatic pumps are more suitable for home water supply. Let them be a little more expensive, but believe me, soon it will more than pay off.
Water pumps for domestic water supply Grundfos
There is hardly anyone who has not heard of Grundfos pumps. Today it is one of the leading manufacturers of such equipment. What can I say, here are various models (submersible and surface), and types (vortex and vibration). All this allows the consumer to choose a pump that will be ideal for him. In addition, all equipment is equipped with sensors for overheating, dry running. This manufacturer offers a huge selection in terms of technical characteristics of the equipment. You can find both low-power pumps for shallow wells and the most powerful models for well shafts. It is impossible not to say about the high quality of the equipment. Here I mean both the resource of work, as well as the quality of the assembly as a whole.
What do consumers say?
You already know almost everything about how to choose the right water pumps for home plumbing. Consumer reviews, by the way, play an important role. The fact is that all manufacturers talk about the high quality of their products, which, in fact, is correct, but not all pumps deserve attention. Someone has the sad experience of such purchases. They can share it with you, and absolutely free of charge. It is worth noting that you will already know for sure that it is better not to buy Chinese models. For example, many consumers note that there are no problems with the Vilo equipment from a leading European manufacturer. While SAER pumps are sometimes repaired by the after-sales service for a very long time. In general, it is advised to give preference to mid-level equipment. It is very high quality, and finding parts if necessary is not a problem.
Brief overview of the domestic market
Of course, one cannot fail to say that there are good Russian-made pumps. For example, the "ZNVP-300-25 Bison", also known as the "Rodnichok", is ideal for shallow wells (up to 5 meters). This vibratory type pump delivers 1,400 liters per hour with a pressure of 55 meters. This is enough to supply water for both domestic and household needs. But you need to understand that vibration can lead to siltation of the source.
Another example of a good domestic pump is the "Caliber NVT-210/16." It is of the same type as the previous one, but with slightly lower productivity - 700 liters per hour. Nevertheless, its power is only 0.2 kW, which is very small. At the same time, the price of such equipment is only 1,100 rubles. An excellent exit, especially if you have a well with a depth of no more than 10 meters.
Karcher and Vilo pumps
The equipment of the German company Karcher is appreciated all over the world. These are excellent pumps, they are very high quality and durable. In principle, this is not surprising, since the cost of such equipment is very high. For example, the model SPP 33 Inox 1.645-409 with a capacity of 6,000 liters per hour will cost 13,000 rubles.
But the water pumps for home water supply "Vilo" - this is just what most of us need. The price is slightly lower than that of German technology. But something bad to say about them just does not turn the tongue. Consumers who leave positive reviews on the forums and the manufacturer’s website also speak of excellent quality.
Conclusion
So we talked about how to choose a pump for home water supply. Pay attention to the above characteristics. In particular, this is the pressure, power of the equipment and its type. All this will help you make the right choice. As for the manufacturer, it is best to give preference to domestic companies. This is due to the fact that repairing such equipment is much cheaper and faster than European. And there are no special comments on the quality. Much also depends on how correctly the equipment is installed, and how it will be operated and maintained in the future. In general, this is all on this topic.