How long do you wait for hot water to arrive in your shower? 30 seconds, 1 minute, 2 minutes? Stop waiting for hot water by installing an AquaMotion hot water recirculation system! AquaMotion’s hot water recirculation systems prevent potable water waste by bypassing the lukewarm water in the hot supply pipe into the cold water line back to the water heater – instead of dumping it down the drain .