A man uses a dissolved solids meter to test the water quality of both fresh rainwater and his city tap water, and the results he finds are going shockingly viral, with rainwater measuring almost as pure as it can be at 2 ppm, while his city water is well over 300 ppm.
In case… pic.twitter.com/KZQOnUs2g0
— Right Angle News Network (@Rightanglenews) April 22, 2026
Factcheck:
The TDS readings check out: clean rainwater is naturally distilled and often ~2–20 ppm (very pure), while municipal tap water commonly runs 100–500+ ppm from minerals, treatment chemicals, and pipes. The video demonstrates a real difference. Collecting rainwater isn’t illegal nationwide—it’s legal in all 50 US states. A handful (like Colorado, Utah) have volume limits or permits due to water rights laws in arid regions, not purity or forcing tap water use. Most places encourage it for conservation.