The kinetic energy of the mass of exhaust gas carries it along the exhaust pipe, and causes a pressure build up ahead of the mass of gas and a partial vacuum behind it. This principle is used in a tuned exhaust system.
Culligan - $2352 ($2053 w/o R/O unit) Culligan Gold Series (10), Good Water Machine. If I were to look at price only, I would go with either the cheaper Ecowater system w/R/O at $2698 or the Culligan system. At almost $4k, the Kinetico system seems greatly over priced.
Culligan Gold Series Water Softener. The Culligan Gold Series Water Softener is designed to put an end to all of your hard water problems. From soap scum and scaling to dried out skin and dull laundry, the Gold Series Water Softener can handle the toughest hard water. A Culligan Water Softener allows your local Culligan Man to create a customized solution that is unique to your home and your home's water. Give us a call today to discuss if a Gold Series Water Softener is right for you. The Culligan Gold Series Water Softener with patented technologies offers numerous high end features: