http://blogs.washplus.org/drinkingwaterupdates/2012/03/eliminating-turbidity-in-drinking-water-using-the-mucilage-of-a-common-cactus/ from the WASHplus Project Tue, 22 Sep 2015 12:34:42 +0000 hourly 1 http://wordpress.org/?v=3.1.4