Katrin Frank | Reines Wasser, reiner Tee! Leitfähigkeit im Trinkwasser – kurz erklärt Sie zeigt, wie viele gelöste Salze & Mineralien im Wasser sind.... | Instagram

My brother was about to drink straight from a forest faucet in Glacier National Park… I told him to wait — and tested the water first with my TDS meter. Reading: 7 ppm. 💧 That’s about as pure as water gets. Most bottled water is 10–80 ppm. TDS = Total Dissolved Solids (minerals, salts, etc). **Would you drink from this?**👇 #WaterTest #GlacierNationalPark #CleanWater #TDSmeter #NatureTest #WaterQuality #OutdoorAdventures #ScienceInSeconds #VarifyWater