How is the quality of handheld systems ?

Homemade sewage filter The simplest: make a filter basket with a punching net and make a filter bag with a filter cloth. Connect the filter bag with the sewage pipe, and put the filter basket outside the early filter bag to prevent the filter bag from exploding. It is recommended to buy a bag filter, which is also very cheap. Much better than homemade.

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What are the drawbacks of office bottled water? Once the bottled water is loaded on the water dispenser,The bacteria in the air enter the sealed bucket with the air,And constantly replenish the air in the process of releasing water,It will also cause a large number of microorganisms in the original qualified bottled water to breed,Resulting in pollution of water bodies and water dispensers.Disease control experts track and test bottled water: 5 days after Kaifeng,The Sanitary Condition of bottled water has dropped sharply,The pass rate for 7th days is only 20%,To 10th days,All bottled water tested,The total number of colonies exceeded the standard.So,What are the drawbacks of bottled water?Experts say,The common 'secondary pollution' of bottled water is inevitable.No exception is to send water by hiring bicycles and tricycles,Due to the influence of time, climate, environment and personnel quality during the whole water delivery process,The possibility of 'secondary pollution' is great.There is also a co