1:5:10:365 EcoTip Blog

July 16, 2008

:198 Ozone Water Purification

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:198 EcoTip: Ozone has some uses for killing bacteria as a part of water purification. This method has become popular for spas and swimming pools permitting a reduced amount of chlorine to be used. When used for drinking water purification, it should be combined with other types of filtration and purification to address contaminants that ozone doesn’t reduce.

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 Additional Information:

Suggested Review: :190, :191, :192, :193, :194, :195, :196, :197

Ozone has been used for helping to achieve low bacteria levels in spas, hot tubs, wells, pools and water purification units. One way of generating ozone uses UV light which was discussed yesterday in :197.

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July 15, 2008

:197 UV Water Purification

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:197 EcoTip: Ultra Violet Light (UV) has some uses for killing bacteria as a part of water purification. Think of it as an alternative to chlorination. Unlike chlorine it has no residual effect.

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 Additional Information:

Suggested Review: :190, :191, :192, :193, :194, :195, :196

UV has been used for helping to achieve low bacteria levels in spas, hot tubs, wells and water purification units. The UV light needs to be shielded so it is concentrated on the water and avoids causing damage to people’s eyes and skin. UV is rendered useless when “shadowing” occurs. In order for it to be effective the bacteria must be exposed to the UV light. Sediment, hardness, minerals, iron, manganese or turbidity will also make the UV system ineffective because the bacteria is shielded from the UV.

This information was paraphrased from the third edition (released in May 2008 ) of Prescriptions for a Healthy House: A Practical Guide for Architects, Builders & Homeowners which I wrote with architect Paula Baker-LaPorte and physician Erica Elliott.

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May 26, 2008

:147 Water Heater Flue

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet.

1:5:10:147 EcoTip: Make sure your gas water heater is properly vented. Over time the flue vent pipes can rust out or get knocked loose. Its important that your water heater be vented according to code and the manufacturers instructions.

waterheaterflue.jpg 

This water heaters flue pipe got knocked loose so that it was venting carbon monoxide into the living space.

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Additional Information

Suggested Reading – :114

 Carbon monoxide (CO) is a colorless, odorless gas which at high levels can cause serious illness and death. CO alarms are widely available and should be considered a back-up to BUT NOT A REPLACEMENT for proper installation, use, and maintenance of fuel-burning appliances. CO alarms are designed to warn you of any unusual build-up of CO in your home.  – EPA

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