Patent Number: 
Section: claims

1. A method of adjusting the pH of a stream of water in a water system of a power plant comprising:providing a pressurized stream of water in a water system of a power plant; andadding anhydrous ammonia into the pressurized stream of water via a vacuum eductor, wherein the pressurized stream of water in the water system of the power plant provides vacuum assistance for the introduction of the anhydrous ammonia. 2. The method according to claim 1, further including controlling the addition of anhydrous ammonia. 3. The method according to claim 2, wherein controlling the addition of anhydrous ammonia comprises controlling the rate of addition of anhydrous ammonia based on conductivity of the pressurized stream of water in the water system of the power plant. 4. The method according to claim 2, further including metering an amount of anhydrous ammonia added into the pressurized stream of water in the water system of the power plant. 5. The method according to claim 4, further including controlling hydraulic conditions of the pressurized stream of water in the water system of the power plant to create the vacuum. 6. The method according to claim 5, further including storing anhydrous ammonia in a storage assembly for addition into the pressurized stream of water in the water system of the power plant, wherein the storage assembly is positioned distant from the addition point. 7. The method according to claim 6, wherein the vacuum created by the flow of the pressurized stream of water through the vacuum eductor is the only assistance for the addition of the anhydrous ammonia from the storage assembly to the point of introduction into the pressurized stream of water in the water system of the power plant. 8. The method according to claim 6, wherein controlling the addition of anhydrous ammonia comprises a control system for use by an operator positioned distant the storage assembly.