Category Archives: slow sand water filter study and construction

November Update

It’s now November, 2021. Our filters, with the exception of the one with a leak in the output pipe, are approaching their 14th year of operation. The repaired cistern is still full of filtered water. Covid is still here. No … Continue reading

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Update October 2021

One of the filters has developed a slow leak in the output pipe. We were working on that until 2 months ago. A back injury here has stopped our work. We will be healed up probably within a month from … Continue reading

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Flow Tests on Slow Sand Filters 1,2,3,4 and 5 from our website slowsandfilter.org

This is a selection of information from our website. There will be more to come in the following months. This information is part of our ongoing research that started back in 2007. Fourteen years of work, so far. We will … Continue reading

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Update, July 15, 2021

Wow, last month we wrote that the weather here has been “normal”. Nothing could be further from the truth. We had 104 degrees Fahrenheit here June 28, 2021, and that was in the forest in total shade. So hot it … Continue reading

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Blog update June 18, 2021

Filter 1 is still working, and is in the process of being tested again. We are running water through it and hope to be able to have a professional testing done soon. Another pond filter will be put together this … Continue reading

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May 2021 update

It is now May 22, 2021. All the original slow sand  filters here are still functional. We have 9 slow sand filters running here. Four of them are pond filters. The latest pond filter is still being tested and no … Continue reading

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2020 slow sand filter update

It’s now December 16, 2020 covid19 is still here and, consequently,  we still cannot have any tests done by commercial testing facilities. Thankfully, the horrific political situation in this country is somewhat calmed down and science will now be respected … Continue reading

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Slow sand filter update August 8, 2020

All of the original filters except one are still active and running. As of last month, this blog has been here for 12 years. All this time we have been studying and carefully observing the ability of naturally occurring processes … Continue reading

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Update for May 2020

All but one of the slow sand filters here are still working. All of the damage to the cistern has been repaired. Filter 1, which was started in 2007 and first tested in 2008 is still running. No  tests have … Continue reading

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Update for 2019

As of August 26, 2019 most of the winter storm damage from last year’s snow and ice has been repaired. The cistern roof collapsed under  the weight of the snow. Pipes were broken and water contaminated. The repair work was … Continue reading

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