[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

选软水机前必须先测原水硬度:南方水质通常150-250mg/L(以CaCO3计),北方及地下水常达300-450mg/L,硬度越高需要的树脂罐容量越大,450mg/L以上建议选树脂量≥18L的机型否则再生过于频繁

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