| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that exhaustion speed of ion exchange resin is fast in a conventional water softener. SOLUTION: A water softener of this invention is provided with a waste supply pipe 7 for introducing raw water, a T-tube 11 for branching the raw water introduced in the water supply pipe 7, ion exchange resin cartridges 1a, 1b for softening one of the raw water branched by the T-tube 11, a T-tube 12 which can blend the water softened by passing through the ion exchange resin cartridges 1a, 1b with another raw water branched by the T-tube 11 and a delivery tube 8 for delivering water passed through the T-tube 12. |
