| 摘要 |
PURPOSE:To prevent the accident due to the pressure breakage of a hot water tank and water leakage when a shower head is clogged by providing a cross cut on the seal packing on the DC side when the shower side of the shower head provided with a DC switch is set. CONSTITUTION:A hot water storage having a heating means, a hot water feed pipe connected to the hot water storage, a tap 12 connected to the hot water feed pipe, a shower provided at the tip of the tap 12, and the shower head 13 provided with a DC switch are furnished. The cross cut 20 is further provided on the DC-side seal packing 19 when the shower side of the shower head 13 is set. As a result, the water pressure can be safely released to the DC side when the shower head is clogged, and the pressure breakage of the hot water tank and water leakage can be prevented.
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