Apparently, this user prefers to keep an air of mystery about them.
18 Can groundwater still be consumed if after boiling the water turns brown with an oily substance floating on top? jun 22
16 Washing dishes with seawater or freshwater? may 11 '13
14 Why does sunscreen not work all day? jun 15
14 How can I conserve water over long treks? may 19 '13
13 Does packing boots with newspaper make them dry faster? oct 21 '13