タンクレス給湯器のフラッシュ方法。1 分間のチュートリアル。
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給湯器の洗浄 | 早くて簡単
給湯器に関するよくある誤解に答えます | Ask This Old House
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Muriatic acid ☠️
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凝縮水排水管の故障!#nighthawkhvac#hvac#hvaclife#cooling#techlife#ac#hvacservice#condensate
Ammonia and sulfamic acid mixed with 5-SSA/Iron chloride/Methanol Paint.