men`s hands pour light liquid from a plastic tank into a pool, into water. chemical water purification, alkali balance, unsanitar

acidbase alkali aqua bacteria balance beverage bottled care carry chemical chemicals chlorine clean cleaning clear cold concept conditionsdisinfection container day disinfection drug flocculant full hand hands health healthy holding light liquid mens microorganisms mineral plastic pool pour pouring preparation prepare pure purification quality rate refreshing refreshment sanitary summer swimming tank unsanitar unsanitary water