Bây giờ các tính năng khác nhau của các nhãn hiệu khác nhau của thiết bị đã được trình bày, đó là thời gian để đặt chúng lại với nhau và có một cái nhìn sơ lược về hệ thống tổng. Người đọc phải chịu trong tâm trí những hạn chế chủ trương như vậy, như các tính năng thay đổi và các mô hình mới được giới thiệu. Nếu cuốn sách này được sử dụng đúng cách, đủ kiến thức cần đạt được để cho phép một để đánh giá những thay đổi này đầy đủ. Nó sẽ là. | CHAPTER 21 The Complete System Now that the various features of the different brands of equipment have been presented it is time to put them all together and take a brief look at the total system. The reader should bear in mind the limitations of such an undertaking as features change and new models are introduced. If this book is used properly enough knowledge should be gained to allow one to evaluate these changes sufficiently. It would be unfair to the manufacturers and the end user to take the brief comments made in this chapter as sufficient grounds for making a decision. These comments are provided to help the reader to see better the big picture when undertaking a thorough evaluation. They are not based on exhaustive empirical studies or head-to-head tests on every feature. The manufacturers specification s and claims have been taken at face value and have not been independently verified. The information presented is based on informed opinion gathered through much experience with a broad spectrum of operators and applications but still subject to the many biases and flaws of fallen human nature. Caveat Emptor. A. THE TREATMENT PLANT APPLICATION All the equipment reviewed is designed for drinking water treatment applications. As such each should perform adequately. Most of the important decisions will have to be based upon the service record and equipment reliability of each manufacturer which will have to be accessed by consulting references. It is important to consult a sufficient number of references to overcome individual biases and offset the occasional black hole installation that will happen to everyone. Make sure that proper account is taken for the age of the equipment installed. Many improvements have been made in the past few years as the market has matured. Often complaints stem from frustration with the functionally limited equipment sold in earlier years especially before adequate computer interface was provided. Many operators have never .
