At what percentage should you notify OOD regarding potable water?

The correct notification threshold for potable water is typically set at 70%. This percentage allows sufficient time for planning and action to ensure that water replenishment can be arranged before the supply runs critically low. Notifying the Officer of the Deck (OOD) at this point facilitates management of resources and helps avoid potential complications that could arise from low potable water levels, such as impacts on crew health, sanitation, and overall operational effectiveness. Notifying at percentages such as 50% might be too early and could lead to unnecessary alerts, while 90% or 100% would not provide proactive management of supplies, as it would be too late to make timely adjustments. Thus, 70% strikes a balance between being proactive without over-alerting.