Water softener is ion exchanger.

来源: nyjg 于 2020-10-30 12:36:25 [] [旧帖] [给我悄悄话] 阅读数 : (73 bytes)

Electricity is used for control panel and internal pump. 

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• Right! I figured out. I’m just surprised they use extension cord -sac- ♀ 给 sac 发送悄悄话 (0 bytes) () 10/30/2020 postreply 12:39:51

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