Ever wondered why NASA spews out half a million gallons of water during a Rocket launch? This is called water deluge system rocket launch. water deluge test is a crucial procedure conducted before rocket launches, such as NASA's Space Launch System (SLS). water serves multiple purposes during the test. It helps suppress sound levels and mitigate the effects of acoustic energy produced during liftoff. Additionally, the water helps cool and protect the launch pad and associated systems from the hi