Comments on: Lessons Learned in Vietnam about Water Unfit to Drink http://waterbuckpump.com/2013/09/01/water-unfit-to-drink/ Off grid products, deep well hand pumps, well buckets, human powered machines, pedal powered PTO Sun, 20 Oct 2013 00:28:11 +0000 hourly 1 http://wordpress.org/?v=3.6.1