Online timer for 151 seconds
You are standing beside your wet tramping or fishing gear, doing nothing while a 151 seconds rinse runs its course. That short pause gives water time to reach folds, seams, laces, and other places where fragments of didymo may remain. Keep the gear in place rather than lifting it out repeatedly to check.
While you wait beside the rinse, the timer tab may slip into the background when you check a message, weather update, or map. The countdown should continue, although some phones may delay its sound when the browser is restricted in the background. Staying close to the gear means a missed alert becomes a brief extra rinse instead of an abandoned job.
As the wait ends, return first to the sections that interrupted your routine: boot treads, reel fittings, straps, or the edges of a wading bag. Let excess water run away while you inspect them for visible algae caught in narrow spaces. If anything remains, remove it and repeat the relevant part of the rinse rather than treating the elapsed signal as proof that every surface is clear.
Common questions
Can the rinse finish sooner if the didymo is only on one small piece of gear?
A small, simple item may be fully covered before the interval ends, but folds and textured surfaces can still hold material. Use the remaining time to inspect those areas without repeatedly interrupting the rinse.
What if didymo is still visible when this interval ends?
Keep working on the affected section and extend the rinse as needed. Cold conditions beside a New Zealand river can also make handling straps and fittings slower, so the alert can mark an inspection point rather than a hard finish.