Yearly Archives: 2010

A slight diversion . . . .

This blog is associated with three other websites listed below. The focus of each site is different. Those websites and portions of this blog are all authored by the same person. The three websites/pages are: http://www.roofwaterharvesting.org http://www,slowsandfilter.org http://www.shared-source-initiative.com/biosand_filter/biosand.html These websites … Continue reading

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Poisons from PVC pipe may be the least of our worries . . .

One of the recent comments on the last post, got me thinking: After reading this article: en.wikipedia.org/wiki/Polyvinyl_chloride and this article: www.truthorfiction.com/rumors/d/dioxins.htm and this article: www.pvc.org/FAQ/Do-products-made-of-PVC-contain-dioxins And this article about water (water dissolves more substances than any other liquid) ga.water.usgs.gov/edu/waterproperties.html and … Continue reading

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PVC pipe: does it poison water?

There have been some questions regarding toxins leaching from the pvc piping used in the filters described on the website referred to in this blog. Because of construction requirements we are limited as to our choices. Copper pipe has adverse … Continue reading

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Biomatic pond filter: The pond filter experiment

Just a short note here. The “pond filter” mentioned on the slow sand filter site slowsandfilter.org has been working for 15 weeks. The thing is put together without the elaborate “baffle” pipe assembly and using .35 mm effective size sand. … Continue reading

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Slow sand filters work despite those who don’t “believe” they do

After reading website after website on how to build a biological slow sand filter, I have come to the conclusion that people need to learn more about how they actually work. Here are 50 references to studies on slow sand … Continue reading

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Don’t take water for granted

I guess this will be kind of a rant. Sorry, but it must be said, besides I have pneumonia now and have to keep from doing a lot of physical work. People are just too darn complacent. Somebody has to … Continue reading

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Harvesting Rainwater from a composition (asphalt) roof

New information is available about rainwater harvesting from composition roofs. The slow sand filter described on slowsandfilter.org has been shown to remove petroleum hydrocarbons from water down to less than 1 part per ten million by weight; and this is … Continue reading

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