Home / Outdoors / Use a siphon, not the drain plugOutdoors use siphon drain plugUse a siphon, not the drain plugThe best way to drain melted ice water from a cooler is to siphon it out with a tube, leaving the drain plug closed.Opening the plug is the worst move if you care about cold air. Cold air sinks, so Shop coolers on Amazon As an Amazon Associate, Work Notes may earn.Related NotesExploreExploreExplorePrevious Use a skillet, not the microwaveNext Use a simple thermometer chart for output goals.