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Cleaning of air-lift pump for removing of impurities from sand filter

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1. Remove the hose for air supply from the air-lift pump nozzles carefully.

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2. Take out the air-lift pump.

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3. Take out also the pipe, in which the air-lift pump was put in.

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4. Wash the pipe inside and outside with water properly.

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 5. Wash also the air-lift pump with water properly.

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 6. Finally, put the air-lift pump back into the pipe and give it back to the accumulation tank. 

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