Category Archives: slow sand water filter study and construction

As a response to one of my posts early this year, someone mentioned their opinion about the damage moss does to your roof: August 23, 2011 at 1:40 pm (Edit) “In the information on a first flow diverter, a comment … Continue reading →

I recently received an email regarding using “roof water” on a vegetable garden: “. . . . I am writing about your article on roof water harvesting using slow sand filtration. I am working with a group on a community … Continue reading →

Roof water harvesting is a good idea, but how does one store the water? A large container can be quite expensive and may require considerable space; and water is very, very heavy. If the container is to be above ground … Continue reading →

I have part one of the video on the diverter up on YouTube. It is here: Some questions included how does the pipe seal if there is only glue on one part? How long are the pieces? The friction fit … Continue reading →

The new diverter is finished and installed. A video will be out when I get time to edit all the files. In the mean time here are some screen shots of a few of the videos and some photos of … Continue reading →

It is now March 8 and the flow rate test has been done. I am feeling much better, and physical work is getting easier. The 4 litre container is used now instead of the 12 litre. It is a “gallon” … Continue reading →

It is now March 1 2011, and we are nearing the end of the 4th winter for filter 1, the third winter for filters 2, and 3 and the first winter for the pond filter experiment. February, here was one … Continue reading →

The pond filter has been running for about 7 months now. It has frozen solid twice, however it did thaw out both times and it is still working. The most recent test showed less than 2 coliform bacteria per 100 … Continue reading →

To clear up misconceptions about the legality of rain barrels, rain water collection and harvesting rainwater in Washington state check these links to the Washington state department of ecology: http://www.ecy.wa.gov/news/2011/016.html http://www.ecy.wa.gov/programs/wr/hq/rwh.html Please, PLEASE check the Wa. state D.O.E. website links … Continue reading →

On this blog, questions and comments relevant to roofwater harvesting / rainwater harvesting, biological sand water filters, and sustainable water filtration practices are encouraged. Also questions regarding the content of slowsandfilter.org, roofwaterharvesting.org, and shared-source-initiative.com/biosand_filter/biosand.html will be answered here. Comments are … Continue reading →