One of them is a brand new upgrade, this way will cause a partial waste of resources, replace the original system with a new system, do not have to worry about the program, control, etc.; the other is to upgrade and remodel on the basis of the original, the use of the original system for local upgrading or remodeling, this way to save materials, but for the operation and control part of it, every Purified water manufacturers have their own set of procedures system, if the way to take is through another company to carry out the transformation, especially the intelligent control mode, 仟 净 provide lifelong replacement of maintenance services purely for manual control of the system will be less of this situation, you can use this