Set the alarm for 4:10 a.m.

Web alarm clock for 4:10 a.m.

As you hand the pump duty to the next person, set the 4:10 am alarm so they know when to start the water pump before the scheduled brownout. Tell them which switch or valve to use and where the water should go, rather than leaving only a time. The alarm also leaves a clear window before 5:00 am for checking that water is flowing.

During the handover, confirm where the alarm sound will play. A phone connected to earphones may send the alert there without the person taking over noticing, so test the sound at a low level and disconnect the earphones if the phone speaker is needed. Keep another alarm available: this browser alarm cannot warn the pump operator after the page is closed or the phone goes to sleep.

Before the outgoing person steps away, have them check the path to the pump and the area around its controls. At 4:10 am, humid Philippine night air can leave outdoor handles, concrete, and tiled surfaces damp even without rain. A dry cloth and a light placed within reach help the next person manage the switch or valve without fumbling in the dark.