The round face has a blue SHIFTING button in the center. You can toggle between AUTO and MANUAL modes. It also has a No pressure auto feature, which means it can turn on automatically when it detects water flow or low pressure.
Type: permanent magnet household
Voltage: Dc 24v
Power settings: p1-50w. P2-70w. P3- 85w
Max head: 12m, 15m, 18m selectable
Max flow: Q1-25L/min, Q2-30L/min, Q3-35L/min
Inlet/outlet: 3/4
Max Temp: Tf 90°C.
How it works: In AUTO mode, it senses when you open a tap and boosts the pressure. In MANUAL, you run it continuously. The three power/head settings let you match it to how much boost you actually need.
This kind of pump is common in flats and houses in Lagos where municipal water pressure or tank gravity feed isn't strong enough for good shower pressure.