Page history

Concrete Biosand Filter

25 February 2020

Jon
→‎Acknowledgements
07:51
+19

21 October 2017

Winona
no edit summary
05:37
+322

21 July 2014

Ohorizons
noted that the OHORIZONS Foundation has an alternative to the steel mold, its Wood Mold.
m
22:04
+75

14 March 2014

25 October 2013

Winona
→‎Field experiences
04:42
+807

2 October 2013

Winona
no edit summary
04:16
+57

26 May 2013

18 January 2013

24 November 2012

8 November 2012

25 July 2012

Winona
→‎Suitable conditions
05:55
+168

6 June 2012

Winona
no edit summary
23:09
+33

15 May 2012

27 April 2012

8 July 2010

Neesha
no edit summary
15:01
+18

8 April 2010

19 August 2009

4 August 2009

28 July 2009

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