Before starting to purchase water treatment equipment, manufacturers must consider the cost. The initial purchase cost of the EDI ultra-pure water machine will be relatively high. Due to its strict technical standards, the machine cost is not low. However, compared with ordinary ion exchange equipment, its cost performance is still very high. General ion ex-changers cannot be produced continuously, and a lot of acid, alkali, manpower, and time are required for regeneration. This is not comparable to EDI machines with a higher degree of automation. If the manual regeneration machine of the ion exchange column is changed to a fully automatic regeneration machine to achieve the automation level of the EDI machine, in addition, to ensure continuous production, two sets of ion ex-changers must be used. One is running and the other is prepared. The investment is almost the same as that of the ED machine, while the operating cost of the ion ex-changer is much higher.
EDI ultra-pure water equipment has advantages that traditional technology does not have. When manufacturers use ultra-pure water equipment, they generally consider the economy of the machine. The pure water used in the industry starts production with EDI ultra-pure water equipment.