Well pumps for dirty water. Quite recently, two or three years ago, this became a trend. This is a marketing ploy of companies looking for their Unique Selling Proposition. Pumps for wells with a high content of mechanical impurities, aka pumps for dirty water, are nothing more than fiction and a marketing play on words. 00:00 Intro (musical). 00:08 Greeting. What will the video be about? 00:26 Three designs of well pumps 01:05 Well screw pumps 04:40 Well vortex pumps 06:06 Well centrifugal pumps 07:29 Floating impellers 07:47 A bad example is contagious 09:28 Let's summarize 11:48 Table with sand. Do you need it? There are three types of well pump designs. 1. Screw, also known as auger well pumps. At low power, they are capable of providing high pressure, but low flow rates. They are used mainly in low-flow wells. The recommended amount of sand is from 50 g / m³ to 150 g / m³. 2. Vortex well pumps are very sensitive to sand in water. They are used mainly when taking water from tanks. Sand wears out the impellers and the characteristics of the well pump drop, both pressure and flow rate. The recommended amount of sand is from 10 g / m³ to 50 g / m³. 3. Centrifugal well pumps are the largest group of well pumps. They are capable of producing both high pressures and high flow rates. Not long ago, manufacturers appeared who began to position their well pumps for dirty water. The amount of sand for centrifugal pumps can be from 180 g / m³ to 30 kg / m³. The increased presence of sand in the well leads to the wear of the impellers. The pump design provides for large gaps in the working wheel group, and this leads to a loss of efficiency and to greater energy consumption. It turns out that a liter of water in this case will cost more. Borehole pump for dirty water. Structurally, some manufacturers explain this possibility precisely by the design of floating wheels. But ... there is one BUT. The floating design of the working wheels does not provide tangible advantages for working with dirty water. More precisely, the pump pumps this amount of premiums, but it quickly exhausts its resource, and consumes more electricity. Therefore, the borehole pump GV (for dirty water) is nothing more than an advertisement for a fictitious improvement of the pump, in fact, it is more of a headache than an advantage. A pump for dirty water is a pump for a lazy driller - installer. ))) Miracles do not happen. Even those companies that gave impetus to this direction, borehole pumps for sand, changed their parameters in 2023. The company Jileks reduced the amount of sand for its VODOMET pumps from 3 kg to 2 kg.