Akvo water solution of the week

The series "Akvo water solution of the week" will run from November 2009 up to April 2010. The series highlights a water technology every week. It is featured in the Akvo blog and on the Live Earth blog.

• Solution 1: Handwashing made simple — the Tippy Tap

• Solution 2: Pumping on your feet — the Treadle pump

• Solution 3: Tried and true — treating water with chlorine

• Solution 4: Baptist drilling — affordable boreholes made by drilling clubs

• Solution 5: Clean water — it's right above your head

• Solution 6: Extremely affordable water filters

• Solution 7: Why water pumps should be extremely repairable

• Solution 8: Constructing low-cost water tanks with ferrocement

• Solution 9: The Rope Pump

• Solution 10: Drilling boreholes in the kitchen, the story of Samuel and Hermelinda

• Solution 11: Drilling boreholes the Bolivian way - the EMAS method

• Solution12: Hydraulic rams - making water run uphill