Author Archives: filter_guy

Update January 6, 2024

Filter 1 is still functional; running since 2007. Hopefully we can have some tests done soon. The other filters, all but two, are running, but very slowly. The first pond filter is still functional. The pond container, and pump was … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Update January 6, 2024

Update June 22, 2023

The original filter, started in 2007, is functional, as of today. The first and second pond filters are functional also. Watercress is growing in the first pond filter quite nicely. The water is crystal clear in both ponds. The fish … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Update June 22, 2023

Update January 3, 2023

The weather has eased up a bit. No freezing for about 10 days now. The filters are starting to flow again. Hopefully we can get some testing done now, after some minor repair work. The snow and ice caused some … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Update January 3, 2023

December 18, 2022 Update

As of July this year, this blog has been on the net for 14 years. The oldest filter here has been running for 15 years. This winter is starting out to be severe, for this location. It has snowed 8 … Continue reading

Posted in slow sand water filter study and construction | Comments Off on December 18, 2022 Update

November 2022 Update

It is now November 9 in 2022. All but one of the filters are functional. We are now able to start working on the filters again, as we have fully recovered from the back injury. We may be able to … Continue reading

Posted in slow sand water filter study and construction | Comments Off on November 2022 Update

Slow Sand Filter Update

It is now June 17, 2022. All of the filters are still in place. Some work needs to be done on several of the filters. We have just had a major website update/change completed. All our websites and blogs have … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Slow Sand Filter Update

The newest fish pond water is still clean after over a year with 3 fish in the pond.

Posted in slow sand water filter study and construction | Comments Off on The newest fish pond water is still clean after over a year with 3 fish in the pond.

Biological slow sand water filters remove over 99 percent of nanoplastics

Read the info at this link: https://techxplore.com/news/2022-05-treatment-efficiently-nanoplastics.html From the article: “Both in laboratory tests and in a larger test facility located directly on the premises of the Zurich Water Works, the biologically active slow sand filter was the most effective … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Biological slow sand water filters remove over 99 percent of nanoplastics

Update April 4, 2022

Website hosting continues to get more expensive. We will try to keep this blog and website running as long as we can. We do not want to run ads on this site, or on this blog. All of the filters … Continue reading

Posted in slow sand water filter study and construction | 1 Comment

Update; January 17, 2022

In the last week of December this year, we had 11 inches of snow here and temps down to 11 degrees f. All the filters froze. As of now they are thawed out and all but 3 of them are … Continue reading

Posted in slow sand water filter study and construction | Comments Off on Update; January 17, 2022