Salt Water
"Several bowls of salt water should be placed on the table for use during the Seder. The salt water is used as a dip for the karpas (vegetable) and also for dipping the hardboiled eggs, which are consumed immediately before the full meal is served."
(The Concise Family Seder. Prepared by Rabbi Alfred J. Kolatch. Jonathan David Publishers, Inc. Middle Village, New York. 1987 by Alfred J. Kolatch)