Visit our website: https://teploresurs72.ru/ Ready-made water supply system: https://www.ozon.ru/product/sistema-a... The first thing that usually begins the water supply of a private house is the choice of a pump. Borehole submersible pumps are ideal for both boreholes and wells. They are completely silent, as they are located in the well. They do not vibrate, thereby not breaking the walls of the well and the borehole. It is worth considering that all pumps are quite demanding on the quality of water, and if you have a completely new well or stagnant, then the first 2 days it is recommended to pump out all the sand with a baby pump. There is also an option to install a pumping station, but we do not recommend it and do not install it on our sites, because it is very noisy, has a short service life, and most importantly, the maximum suction depth is 8 meters, regardless of the manufacturer. It is more suitable for country houses and irrigation. We will make a separate video about the stations later. Choosing a pump is a very delicate matter. Among all the manufacturers, we recommend Vodolay pumps, their price will not hit your pocket, and thanks to high-quality assembly, they will serve you for many years. There is an abbreviation 0.5-32u on the pumps. The first digit means the amount of liquid pumped by the pump per minute (the 0.5 series of Vodolays can handle 60 liters per minute), and the second unit is the nominal pressure, in this case 32 meters, many Chinese manufacturers write the maximum pressure of 70, 80, 90 meters, this should not be confused with the nominal pressure. Nominal pressure is the pressure without loss of technical characteristics. Parameters for selecting a borehole pump The company that drilled your well should have given you a passport, it contains all the necessary information about your well and thanks to this information you will be able to choose the ideal pump. In the comments under the video you can write "help me choose a pump", we will ask you the necessary questions and offer "your" option. The pump usually has an internal thread of 1 or 1 ¼ inches, a check valve is immediately installed after the pump, which does not allow water to flow back into the well. The pipe outlet from the well is made of HDPE pipe (low-pressure polyethylene), it is inexpensive and has a high expansion coefficient, so it withstands temperature changes better than its counterparts, and is also not subject to corrosion. A wellhead is placed at the top of the well, they help prevent dirt from getting into the well, secure the cable and electric cable. And also some models, for example, such as ours, create a hermetic vacuum in the well and contribute to its better operation. The pumps must be secured to a cable, and it is better to use a stainless steel cable rather than a steel cable in a braid, because the braid can wear out and the cable itself will rust and rot over time. According to the manufacturer's warranty policy, it is prohibited to disassemble or cut the cable and the pump safety block. You will have to take a separate extension cord, cut it and push it into the head, connecting it to the pump cable through a fork. After the head, the pipe goes into the house, it is better to put it in thermal insulation, even if you deepen it below the freezing level. If you deepen the pipe above the freezing level in your region, then be sure to lay a heating cable around the pipe. The cable is self-regulating and will not work all winter. An automatic pump system is installed in the technical room of the house. It is better to choose a dry room to avoid screening. The location does not affect the quality of work. The automation system usually includes a pressure relay, a dry-running relay and a hydraulic accumulator. The pressure relay is responsible for turning the pump on and off when the pressure in the system drops. This usually happens like this: the pressure in the system is 2.8 atm, you open the tap and start washing your hands, first the liquid is supplied from the hydraulic accumulator and when the pressure in the entire system drops to 1.5 atm the electrical circuit closes and the pump turns on. The dry-running relay forcibly turns off the pump when the pressure drops to 0.5 atm, after which you must deal with the problem and forcibly start the dry-running relay. This usually happens when the well or borehole runs out of water and the pump starts pumping dry, to avoid this the pump turns off the dry-running relay turns off the pump. It is also necessary to install a pressure gauge so that you can always monitor the current pressure in the system. The hydraulic accumulator is a tank in which water accumulates. It is needed so that each time the tap is opened, the pump does not turn on for 10 seconds. The larger the volume of g/battery, the less often the pump will turn on.