SOLID PRODUCT DISPENSER AND METHOD AND APPARATUS FOR CONTROLLING DISPENSING RATE OF SOLID PRODUCT WITH CHANGING TEMPERATURE

PROBLEM TO BE SOLVED: To provide a dispenser for forming a solution for use by spraying a dilution agent to a solid and dissolving the solid.SOLUTION: The dispenser 10 is provided with: (a) a housing 11 for holding the solid; (b) a spray nozzle for forming the solution for use by spraying the dilution agent to the solid held in the housing 11; (c) a first flow-in dilution agent passage fluid-communicated with the spray nozzle; (d) a first flow control portion disposed in the first flow-in dilution agent passage so as to keep a first flow range with no relation to the pressure of the dilution agent in a certain pressure range; (e) a second flow-in dilution agent passage fluid-communicated with the solution for use; and (f) a second flow control portion disposed in the second flow-in dilution agent passage so as to keep a second flow range with no relation to the pressure of the dilution agent in the pressure range, and keeping the concentration of the solution for use over the pressure range.