Illustration of the eDIY-sampler filtration system used here on field, composed by a 1) back-pack (to carry the 12 V diaphragm pump) (A) and the battery (B), activated with a ON/OFF button (C)) and 2) a telescopic pole with three independent tubing channels, activated by a tap (D) and allowing the water to flow (visualized by indicators (E)) through the filters placed in the Smith-Root holders at the extremity (F) on a thermoformed (and holed-drilled) Plexiglas plate (G).