ultraviolet light systems can kill bacteria and viruses but can not remove chemicals,
pesticides, micro-biological and other contaminants. They also demand
high maintenance to remove foreign matter and contaminants that build
up and block the ultraviolet exposure needed to be effective.
systems only remove certain chemicals and canít kill
bacteria or viruses. They require large storage tanks that can become
contaminated, as well as frequent supplier maintenance and expense.
filtration Units can reduce chlorine, improve taste and
remove some--not all--EPA identified chemicals and pesticides, but
canít reduce levels or remove any bacteria or viruses.
carbon filters cannot reduce organic, chemical or microbial
contaminants; can reduce chlorine.
Bottled waters have no purity standards imposed by any regulatory body and may be no purer than
tap water. Using bottled water is very expensive.
Water coolers deliver water that has no purity standards and the cooler mechanisms
are easily contaminated by bacteria.