Review on Circulation pump Wilo PB-H089 EA (140 W) by Jnis Bisters ᠌

I recommend it to anyone who experiences discomfort due to lack of pressure. The quality is excellent, the case is airtight, for 8 years, only wiped the dust a couple of times, the flow sensor never hung. Noise from work is acceptable, does not disturb at night. Production South Korea. Some pros: I bought it as a spare . The first one, the same one, has been working in an apartment for about eight years, installed right after the water meter, a little tired, it no longer gives passport pressure. Somewhere 4-5 meters now, but it does the job. A couple of years ago I heard a slight squeak in operation, then disappeared, perhaps sand or rust was the cause. An ordinary mud sump is installed at the entrance, I treat it very negligently, I looked it 1 or 2 times. The main purpose, it increases the pressure to turn on the gas column, it also helps to fill the tank and the washing machine, it turns on when the drinking water flow filter is running. The pressure in the water supply is unstable, from 0.4 to 6 bar, therefore, to prevent switching on at normal pressure, a pressure switch is installed in series with the flow sensor circuit, which allows starting at a pressure below 1.8 and prohibits it at a pressure of more than 2.8. Got cons: I would like more pressure, but everything has its price . And the size! And the noise level! The situation with unstable pressure is not provided by the manufacturer. There is no start inhibition in the case when it is not necessary to increase the pressure. But this is not a complaint! In the instructions, it is drawn in 2022 on white that the pump is designed to work with a tank, and not in a city water supply.