Profile: FCI Watermakers, Inc. specializes in the production of watermakers. We offer a complete line of reverse osmosis systems that are capable of fulfilling any fresh water need. Our seawater reverse osmosis watermaker systems are designed for use at 12000-50000 TDS salt water. Our Poseidon series watermakers features include hand selected membranes, stainless steel fittings, advanced engineered pressure vessels and fully automatic fresh water flush system that clears the systems of corrosive saltwater upon each shutdown.