The Grossan Nasal Adapter made by HydroMed Inc ., P.O. Box 591273, Los Angeles, CA 90009. Fill the Waterpik bowl to a volume of 500 cc with warm tap water. Many prefer body temperature water at 97 degrees, others prefer slightly cooler temperature. Plain water burns as does hypertonic saline. Normally, one, two or at the most three teaspoons of salt are added to the 500 cc of tap water.
Most patients do well with a single teaspoon.
The pressure adjustor should be turned to the lowest pressure and the patient leans over the sink holding the Waterpik nasal adaptor first to one nostril then the other. Each nasal cavity is irrigated. Sometimes the water runs through the pharynx and out the mouth and sometimes it will run out the contralateral nostril. Each nasal chamber is irrigated until clean. Some patients irrigate with 250 cc on one side and then 250 cc on the other.