Site set the timer to 40 seconds

Web timer for 40 seconds

As you guide a child through rinsing salt water from their fins after a swim, 40 seconds gives them a clear finish point without turning the rinse into a rush. You can keep your hands free to hold the fins steady, check the straps, and remind them to let fresh water reach the buckles and foot pockets.

While they rinse each fin, keep the countdown visible on your phone instead of relying on the display to stay awake. A screen that dims before the rinse ends can make a child think the time has finished, so adjust the screen setting beforehand or listen for the alert while you watch their progress. This is useful at a Philippine beach where bright sunlight can already make a dim display difficult to read.

When the child is nearly done, ask them to keep the fins low and the water controlled so the signal does not startle nearby swimmers or interrupt people sharing the tap. If others are close, lower the alert volume and give the child a spoken cue for the final few moments.