Review on Built-in filter under the sink Geyser Prestige P faucet No. 6 by Janis Janis ᠌

Here people wrote that one third is drained into the sewer during cleaning, and so, getting 1 liter of clean water, you drain 4 liters into the sewer. My filters are enough for 3 years (2 adults + 2 children. We use them exclusively for food - tea, coffee, cooking soups, meat, etc.), then I change everything together with the membrane. If you change it according to the schedule, it is expensive, and so a precipitate appears and everything is immediately under replacement. In this scenario, water turns out to be 30 kopecks per liter (this is a recommendation to buy bottled water). In my city, bottled one costs 5.8 / liter. If someone has very bad water, then it will probably be replaced more often, but it’s not dirt that flows from you. To taste, I can say that there is no mineralizer, so it's just distilled water and nothing more. There is a feeling that when you drink raw, there is a slightly sour taste (I have high acidity and I feel when there is acid in food). But there is no desire to drink tap or bottled water anymore. Also, when using bottled tea, it was noticed that there is still scale in the devices and they fail earlier, plus in tea a film appears on the surface and settles on the walls. I don't like it. The same tea but with filtered water has a completely different taste and no impurities or films, etc. not anymore. Before that, there was Atoll, similar in characteristics - it is 40% more expensive to purchase, I won’t say for consumables, but they should be a little more expensive. In general, as a consumer, there is no difference (except for the price). Sorry for the many letters)) I hope everyone will find their answer in my description.