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12h 30min, feb 7, 2021 y - Очистка углём

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Завернули две таблетки толчённого активированного угля в марлю и погрузили в воду. Оставили на солнце, под лучами ультрафиолета.

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Наша чистая вода

8 Feb 2021

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12h 30min, feb 7, 2021 y

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~ 5 years and 4 months ago

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