Harry Potterish's Article in Business

423 Problems caused by hard water
Limescale is a common problem associated with hard water. Lime and other salts found in hard water in their dissolved form build up on taps or any other surface that water comes into contact with frequently.
Posted on Sep-29-2011

761 About the maintenance of heat exchangers
The heat exchanger is equipment used in an industry setting to transfer heat from a liquid to a liquid, a gas to a gas, or a liquid to a gas. Heat exchangers are the unsung heroes of many industrial processes but they are often taken for granted since no one really pays attention them and companies do not want to pay for unnecessary maintenance costs.
Posted on Sep-29-2011