For those who are worried about draining the water into the drainage, I measured it, at an incoming pressure of 3 bar, it turned out to be 1 liter 2-2.5 liters drained, at a pressure of 4 bar it turned out about the same, which made me very happy, about no 6 liters and even more so, 10 liters per 1 liter of clean water is out of the question (. measured when draining outside the tank, most likely, its counterpressure will worsen these indicators). And for those who are still afraid of unnecessarSee full review