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What is the reason for the sound of the water pipe after installing a pre-filter at home? There is air in the main pipe. in the place where the underground pipe is raised, the air in this place is not easy to discharge. when there is water flow, it will cause air vibration. this shock wave will be transmitted to the distance with the water body, if your home is close to the air room, the sound will be large, and on the contrary, it will be small, and the personal family will not be able to solve it. you can find a water company.

Is the manganese sand filter really effective for getting iron from well water 10? The iron removal mechanism of manganese sand filter material is by contact oxidation method,Let the Fe 2 in the groundwater enter the manganese sand filter layer together with the dissolved oxygen,Under the contact catalytic action of manganese sand filter layer,Complete the oxidation and interception of Fe 2.In the early stages of filtering,Mainly based on adsorption and iron removal,After a while,The capacity of adsorption and iron removal of filter materials has gradually weakened,The iron content of water after filtration has an upward trend.Meanwhile,The surface of the filter material begins to generate an iron filter membrane with catalytic activity,But the contact oxidation capacity is small,Therefore, in the process of forming the filter membrane, the new filter material,At the same time, it has two functions: adsorption and iron removal and contact oxidation and iron removal.At the later stage, the active iron filter m