There is a small hole in the center of the bolt that holds the rubber packing at the tip of the shaft. I think that rubber packing can be replaced. I felt like I had a long neck, but the actual thing is still long. I do not think there is a long-dated reason .... It connects the discharge between the manual well pump (gachapon) and the foot valve to prevent freezing of the manual well pump. Because the amount of discharge water is not large, the manual well pump partly freezes, but it will not stop moving, so if you use it a little, the freezing will cease. (Kagawa Prefecture)
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MonotaRO Co.,Ltd. Hyogo Public Safety Commission No.631330800020