... Drinking water reverse osmosis equipmentDesign foundation:1.Raw water qulaity:Tap water2.Water purpose:Drinking water.3.Water output:5000L/H.4.Quality of water:Reverse osmosis desalt ... whole system contains pretreatment system,reverse osmosis devices,post-treatment system,cleaning system,and electrical control system.2.Pretreatment system generally contains pumps,dosing devices,quartz sand filters, ...