PURE WATER FILTRATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of purifying water by filtration and providing an optimal supply mode according to various situations.SOLUTION: A pure water filtration system 1 comprises: a first tank 2 for storing supply water; a filtration device 6 for filtering the supply water introduced from the first tank 2 by a reverse osmosis membrane for producing pure water; a second tank 3 for storing the pure water produced by the filtration device 6; a third tank 4 for storing discharge water generated in a process that the filtration device 6 produces the pure water; a fourth tank 5 for storing toilet water used for toilet; and a fifth piping 95 for introducing the discharge water stored in the third tank 4 toward the fourth tank 5.