“Freshwater” Swimming Pools

“Freshwater swimming pool” is the term used by the swimming pool industry to distinguish between a conventional and a saltwater pool.  The truth of the matter is that there is no such thing as a freshwater swimming pool. You can come close and the way you do that is...

A Brief History of Natural Water Purification

The properties of copper The earliest recorded example of copper being used for natural water purification can be found in Ancient Egypt. A medical text, known as the Smith Papyrus (c. 2400 BC), mentions the use of copper as a sterilization agent for drinking water...