My cousin Mario thought his water was fine—until his goldfish started swimming sideways. He tested it and found ammonia from decaying leaves in his well. A simple carbon filter fixed it, and now his fish do synchronized swimming.
Then there’s my friend Lisa, who spent two years buying bottled water because her tap tasted “earthy.” One $12 test later, she discovered it was just harmless algae bacteria. A quarter-sized filter saved her hundreds of dollars.
How to Test Drinking Water at Home (and What the Results Mean) - MEASCOM
The point? Don’t assume the worst, but don’t assume the best either. Just test it. It’s like checking your smoke alarm—takes two minutes and could save your day.