Unverified85% confidenceDecision RuleTime unknown

选择基于表面活性剂+柠檬酸/EDTA的中性或弱酸性洁厕块（pH 5-8），可实现除垢与配件兼容的平衡；强酸型（pH＜3）除垢强但会腐蚀金属进水阀

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水箱清洁剂category

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Unverified储水式电热水器除垢优先选柠檬酸/氨基磺酸复配型除垢剂，pH值弱酸性(3-5)，对搪瓷内胆和镁棒无腐蚀损伤；避免使用盐酸基强酸产品85% similar Unverified水垢/皂垢为主的浴室选含酸型清洁剂（柠檬酸、乳酸或稀盐酸），pH≤3才能有效溶解无机水垢；霉斑发黑为主则需含次氯酸钠的碱性除霉剂，两类原理相反不可混用84% similar Unverified顽固黄垢、尿碱结石需选含盐酸（浓度8%-10%）的强力型洁厕液，普通含表面活性剂+柠檬酸的温和型只能处理日常污渍无法溶解陈年水垢83% similar

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