For 2 days in April, BioSand Bag Filters showcased the P3 and the newest version, the Table Top P3 at Costa Rica’s Agua Expo 2015 in San Jose. We had both our full-size P3 and the Table Top on display in our booth. We had many visitors and came away from the Expo with agreements from the Ministry of Health to test our P3 in the National Laboratory of Costa Rica! Here are some of the pictures from the exhibition. We also are making arrangements for the initial field testing of the P3 in a rural town. More details to follow shortly.