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Jiabao external filter barrel three layers, what to use for filtering materials, how to arrange, The direction of the water flow of the Jiabao filter barrel is from top to bottom through layers of filter material.I don't recommend the use of activated carbon (reason: the action time is short,The dirt is released after saturation ).From top to bottom, it should be physical and biochemical.The first layer you can put filter cotton under,Put a proper amount of ceramic rings or glass rings on it for dispersing water flow and physical filtration,All the glass rings are placed in the middle layer (the biochemical filtration effect of the glass ring is better than the ceramic ring ),The bottom of the last layer is placed on the filter cotton. it is good to put the glass ring on it (as with the middle layer, it plays a biochemical filtration effect ).

The solenoid valve of the water purifier can be inserted Water purifier is also called water purifier,It originated in London, England, in 1832,Reed, England-Invented by Stevo.The water purifier can be divided into RO reverse osmosis water purifier, UF water purifier, energy water purifier and ceramic water purifier according to its composition structure.RO reverse osmosis water purifier is standard with Grade 5 filtration,That is, pp cotton, granular carbon, compressed carbon, RO reverse osmosis membrane and rear activated carbon are grade 5;Ultrafiltration water purifier is based on ultrafiltration membrane,Other filter elements, such as activated carbon (excluding energy filter elements), are supplemented,The ultra-filtration water purifier is divided into vertical and horizontal according to the installation method,The vertical ultra-filtration water purifier consists of PP cotton, granular activated carbon, compressed activated carbon, external pressure ultra-filtration membrane and T33;The horizontal ul