An apparatus and methods for dispensing a sanitized saline solution for rinsing the nasal passages and sinuses. The disclosure includes methods for bulk storage of granular sodium salt mixtures (pH balanced sodium chloride and sodium bicarbonate), bulk storage of water, heating and sensing elements, filtering elements, and dispensing elements. The apparatus provides controls for customizing the concentration and temperature of the dispensed saline solution, and provides for dispensing the solution into a delivery device, with a water catch basin and area for drying a delivery device after use.