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As you would expect, not much secret here, we just dumped a 1 liter glass bottle with a rope attached around the neck in a few different locations of the river, and pulled it out with the rope.
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And, in the name of science, we even wore gloves to not contaminate the samples!
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Figure 7. Swans swimming in the river when during sample collection. Source. Swam poo bacteria?
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Figure 8. Tying rope to bootle for river water sample collection. Source.
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Figure 9. Dumping the bottle into the river to collect the water sample. Source.
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Figure 10. Measuring the river water sample temperature with a mercury thermometer. Source.
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Figure 11. Measuring the river water sample pH with a pH strip. Source. The strip is compared with the color of a mobile app that gives the pH for a given strip color.
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Figure 12. Noting sample collection location on the water bottle. Source.
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Video 1. Dumping the bottle into the river to collect the water sample. Source. That was fun.
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