Water brash is a classic symptom of

Water brash is excessive salivation resulting from a vagal reflex triggered by acidification of the esophageal mucosa. This is not a common symptom. Afflicted individuals will describe the unpleasant sensation of the mouth rapidly filling with salty thin fluid, often in the setting of concomitant heaburn.When classic symptoms of gastroesophageal reflux are present, such as water brash and substernal heaburn, presumptive diagnosis andempirical treatment is often sufficient.Ref: Harrison; 19th edition; Page no: 1901