The Tide Knot is the force that holds the tides together. Saldowr is the current Keepers of the Tide Knot, which means he watches over it and makes sure it doesn't fall apart. If the Tide Knot does fall apart, the ocean will immediately sweep out to drown the Earth. Although some Mer, such as Ervys and formerly Faro think that this would be a good thing, it has been proven that the loosening of the Tide Knot would destroy large parts of Ingo as well.