When purchasing and equipping a country house owner will inevitably face challenges, which require a certain knowledge. Of course, the choice of individual life support systems to help professionals of engineering firms: they would draft and implement the installation of equipment. However, selecting the best project, from both a technical and economic point of view is always the customer. The main characteristics of the pump are the flow and pressure. Consumption - is the amount of delivered water, which is determined by water consumption for domestic purposes and for watering at a time. As a rule, it is measured in liters per second (l / sec) or cubic meters per hour (m3 / h). On average, this setting for a family of 3-4 persons is estimated at 4.2 m3 / h, watering - 1.5 m3/hr. The exact value depends on the number of water-points and the number of people living in the house. Since most of the water in the house for a long time is not delayed, its scope must match the flow of sewage pump, if necessary (if the sewage by gravity can not "get" to the collector or the local sewage treatment plants), domestic waste water pumped. If the unit is also used for pumping rainwater, it should be taken into account and inflows (for the house with the wall of 10x10 meters, he will be around 3 m3 / h). Consumption of circulating pump for the heating system is determined based on the amount of coolant and heat loss, which must be compensated. In this case, the calculation is not the number of people, but on the area of ??the room. To calculate the pressure of water lifting pumps should take into account the necessary pressure in the system - at least 2 bar, the difference in elevation between the water level at the source and the consumer (for submersible and surface pumps), as well as the head losses in the pipeline. They, in turn, depend not only on the length and diameter of the pipe, but also from an extensive network and presence control valves. All these calculations require the preparation of plans for the site and home. They should be given the planned point of water pumping. Also handy passport Well, if it exists. Approximate calculations can only help to orient in the choice of the approximate capacity of the pump. For the literate selection should refer to specialists. What should be a reliable pump? First of all, reliability is determined by the quality and durability of the material from which made its nodes. It is preferable that the impeller, shaft and pump housing were made of stainless steel or quality plastic, these materials are durable and long lasting. This is especially true for well pumps, because the procedure to replace them in case of damage requires significant time and cost. As a material for bearings manufacturers increasingly prefer high-tech sliding bearings made of ceramic and maintenance-free ball bearings. The second component of the durable equipment - is the optimal design. Pump motors are most commonly improvements. For example, for water lifting pumps, especially the more powerful - well, the moment of starting the engine is a "stress point", provoking an overload the network and contributing to the deterioration of the unit. To avoid this, manufacturers provide softstarter. Through such systems, the engine accelerates gradually while maintaining optimum performance, and there is no need to use a cable of large cross section. Also, soft-start allows you to use the pump to the membrane tank, a small volume, which takes up less space and costs less overall analogues. Another structural point that you want to be mindful of when choosing equipment - is a cable connection and motor protection against water penetration. Using Built-in safety devices protects the pump: the thicker the "armor", the lower the possibility of accidents. Among the most useful tools deserve special attention systems that protect the device from damage in the absence of water (dry run) or motor overload (thermal protection). Factor that affects the equipment, is also a voltage, whose jumps can disable the engine. Many devices are very sensitive to such extremes, and when they connect to use additional security measures. Many pumps provides protection from power surges and pressure drop: the pump is turned off when leaving for the required parameter limits. What you need to run the pump for a long time? Durability of the peculiar only devices that are used with the appropriateness of the operating conditions provided by the manufacturer. Pump to the conditions include characteristics of the fluid. Domestic pumps are designed to work with non-aggressive environment. Therefore, the presence and quantity of solid and fibrous inclusions, including sand, for water lifting and drainage pumps shall conform to required standards. To avoid problems, it is desirable to install special filters on the suction branch of the aqueduct. To avoid water hammer in water and heating systems must be installed tank. Its size will help to select specialists. Drainage pumps need regular cleaning, which can be performed without the help of experts, in accordance with the instruction. Compliance with conditions - is the key to smooth operation of the equipment. How to manage the operation of the pump? If the selection and installation of pumping equipment to help professionals, the further exploitation rests on the shoulders of the owner. Modern automation allows you to adjust the equipment is not only depending on the temperature outside the building, but also set the night mode of circulation, characterized by decreased energy consumption. Using a timer allows you to adjust the pump under his work schedule on weekdays and to save electricity when all the work. But if the system is difficult to control the equipment, a large number of functions can only shoot down an inexperienced user confused. Therefore, when selecting household pumps should give preference to the so-called "intelligent" equipment. It independently adapts to changes and prompts its owner actions to be taken, including the issuing of information about the operation and emergency situations. Submersible pumps in operation are submerged in water, and extract them to control and regulate impractical and expensive (you need a specialist). Therefore, to control their behavior and, accordingly, the work of the entire water supply system used electronic control units that are placed directly in the house. With their help, you can control the mode of operation, pressure, speed, power consumption, and the device eliminates the use of other devices, control and protection. Very convenient to use remote control lets you change settings on their own the necessary parameters, such options are provided for well pump GRUNDFOS type SQE. What else to ask the seller? When choosing a pump to draw attention to the mounting conditions. Specify whether you want to install the pump in a separate room or special area. Some models are noisy, and therefore need a separate room. Quiet operation ensures the use of so-called "wet-rotor, when the engine is cooled by washing it with liquid. The house is often unforeseen circumstances, so do not be amiss to see what additional functionality can perform the pump. For example, many self-priming pumps can operate as an increasing pressure and drainage will help pump out water from the basin or sump. Even the downhole pump is designed for vertical placement in the narrow tube wells in some cases can be mounted horizontally and pumping the liquid from one tank to another, and also used in systems that use rainwater. It is also important to clarify the seller's need to acquire "tying" the pump, which includes a mud filter, pressure gauges, check valve. Necessary adjustment may already be included. Examples of these little things should be taken seriously, because non-compliance relating to installation, may cause a denial of warranty repairs. On his terms should ask the company that implements equipment or carrying out its installation. And also to know whether provided consulting services in case of malfunction. Because often, knowing what the cause of failure of equipment, you can manually fix it (for example, to clean zabivshiysya filter) and save to call the wizard. So, the main parameters, which is guided in the choice of pumping equipment - reliability, efficiency and ease of use. To see how one or another brand meets the individual requirements, you must check with the seller, from which the pump is made, what its design features and the necessary additional supplies and accessories. Do not leave unattended installation conditions, maintenance and warranty. Knowledgeable experts and interested seller is always available to explain the features of a pump and its benefits.
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