Working the the “Venturi” principle, the Mermaid Condensator is installed in-line with the marine air conditioners water discharge line.  As the marine air conditioner and sea water pump are running, the device creates a vacuum effect and literally pulls the condensation water out of the drain pan, merges it with the discharge water, and you condensation is now overboard!  The principle here is to leave your boat a “dry boat” by removing all condensation from the marine air conditioners drain pan, bilge, and/or sump pump.